Prachi Telang, Tim Treu, Marvin Klinger, Alexander A. Tsirlin und Philipp Gegenwart
Adiabatic demagnetization refrigeration with antiferromagnetically ordered NaGdP2⁢O7
Physical Review B 111, 064431 (2025)
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Piyush Sakrikar, Bin Shen, Eduardo H. T. Poldi, Faranak Bahrami, Xiaodong Hu, Eric M. Kenney, Qiaochu Wang, Kyle W. Fruhling, Chennan Wang, Ritu Gupta, Rustem Khasanov, Hubertus Luetkens, Stuart A. Calder, Adam A. Aczel, Gilberto Fabbris, Russell J. Hemley, Kemp W. Plumb, Ying Ran, Philipp Gegenwart, Alexander A. Tsirlin, Daniel Haskel, Michael J. Graf und Fazel Tafti
Pressure tuning of competing interactions on a honeycomb lattice
Nature Communications 16, 4712 (2025)
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Bin Shen, Efrain Insuasti Pazmino, Ramesh Dhakal, Friedrich Freund, Philipp Gegenwart, Stephen M. Winter und Alexander A. Tsirlin
Pressure-dependent magnetism of the Kitaev candidate Li2RhO3
npj Quantum Materials 10, 9 (2025)
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Nelson Hua, Franziska Breitner, Anton Jesche, Shih-Wen Huang, Christian Rüegg und Philipp Gegenwart
Structural and magnetic properties of β-Li2IrO3 after grazing-angle focused ion beam thinning
Acta Crystallographica: Section B, Structural science, crystal engineering and materials 81, 202-207 (2025)
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Feng Du, Alexander P. Drozdov, Vasily S. Minkov, Fedor F. Balakirev, Panpan Kong, G. Alexander Smith, Jiafeng Yan, Bin Shen, Philipp Gegenwart und Mikhail I. Eremets
Superconducting gap of H3S measured by tunnelling spectroscopy
Nature 641, 619-624 (2025)
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Tim Treu, Marvin Klinger, Noah Oefele, Prachi Telang, Anton Jesche und Philipp Gegenwart
Utilizing frustration in Gd- and Yb-based oxides for milli-Kelvin adiabatic demagnetization refrigeration
Journal of Physics: Condensed Matter 37, 013001 (2025)
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Nan Tang, Masaki Gen, Martin Rotter, Huiyuan Man, Kazuyuki Matsuhira, Akira Matsuo, Koichi Kindo, Akihiko Ikeda, Yasuhiro H. Matsuda, Philipp Gegenwart, Satoru Nakatsuji und Yoshimitsu Kohama
Crystal field magnetostriction of spin ice under ultrahigh magnetic fields
Physical Review B 110, 214414 (2024)
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Kan Zhao, Yoshifumi Tokiwa, H. Chen und Philipp Gegenwart
Discrete degeneracies distinguished by the anomalous Hall effect in a metallic kagome ice compound
Nature Physics 20, 442-449 (2024)
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Prashanta K. Mukharjee, Bin Shen, Sebastian Erdmann, Anton Jesche, Julian Kaiser, Priya R. Baral, Oksana Zaharko, Philipp Gegenwart und Alexander A. Tsirlin
Intermediate field-induced phase of the honeycomb magnet BaCo2⁢(AsO4)2
Physical Review B 110, L140407 (2024)
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Bin Shen, Victoria A. Ginga, Angel M. Arévalo-López, Gaston Garbarino, Ece Uykur, Marcos Gonçalves-Faria, Prashanta K. Mukharjee, Philipp Gegenwart und Alexander A. Tsirlin
Magnetic versus nonmagnetic polymorphs of RuBr3 under pressure
Physical Review B 109, 224402 (2024)
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Harish Kumar, M. Köpf, P. Telang, N. Bura, Anton Jesche, Philipp Gegenwart und Christine A. Kuntscher
Optical conductivity of the metallic pyrochlore iridate Pr2Ir2O7: influence of spin-orbit coupling and electronic correlations on the electronic structure
Physical Review B 110, 035140 (2024)
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Bin Shen, Franziska Breitner, Philipp Gegenwart und Anton Jesche
Strong enhancement of magnetic coercivity induced by uniaxial stress
Physical Review Letters 133, 186702 (2024)
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Chris Reinhoffer, Sven Esser, Sebastian Esser, Evgeny A. Mashkovich, Semyon Germanskiy, Philipp Gegenwart, Frithjof Anders, Paul H. M. van Loosdrecht und Zhe Wang
Strong terahertz third-harmonic generation by kinetic heavy quasiparticles in CaRuO3
Physical Review Letters 132, 196501 (2024)
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P. Henning, Robert Gruhl, U. Ross, V. Roddatis, V. Bruchmann-Bamberg, K. P. Stroh, M. Seibt, Philipp Gegenwart und V. Moshnyaga
Tailoring of magnetism & electron transport of manganate thin films by controlling the Mn–O–Mn bond angles via strain engineering
Scientific Reports 14, 3253 (2024)
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Soumendra Nath Panja, Anton Jesche, Nan Tang und Philipp Gegenwart
Tensile and compressive strain tuning of a Kondo lattice
Physical Review B 109, 205152 (2024)
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Anton Jesche, Noah Winterhalter-Stocker, Fabian Hirschberger, Alexander Bellon, Sebastian Bachus, Yoshi Tokiwa, Alexander A. Tsirlin und Philipp Gegenwart
Adiabatic demagnetization cooling well below the magnetic ordering temperature in the triangular antiferromagnet KBaGd(BO3)2
Physical Review B 107, 104402 (2023)
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U. Arjun, K. M. Ranjith, Anton Jesche, Fabian Hirschberger, D. D. Sarma und Philipp Gegenwart
Adiabatic demagnetization refrigeration to millikelvin temperatures with the distorted square lattice magnet NaYbGeO4
Physical Review B 108, 224415 (2023)
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S. Mohanty, S. S. Islam, N. Winterhalter-Stocker, Anton Jesche, G. Simutis, Ch. Wang, Z. Guguchia, J. Sichelschmidt, M. Baenitz, Alexander A. Tsirlin, Philipp Gegenwart und R. Nath
Disordered ground state in the spin-orbit coupled Jeff = 1/2 distorted honeycomb magnet BiYbGeO5
Physical Review B 108, 134408 (2023)
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U. Arjun, K. M. Ranjith, Anton Jesche, Fabian Hirschberger, D. D. Sarma und Philipp Gegenwart
Efficient adiabatic demagnetization refrigeration to below 50 mK with ultrahigh-vacuum-compatible ytterbium diphosphates AYbP2O7 (A=Na, K)
Physical Review Applied 20, 014013 (2023)
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Rajah P. Nutakki, Richard Röß-Ohlenroth, Dirk Volkmer, Anton Jesche, Hans-Albrecht Krug von Nidda, Alexander A. Tsirlin, Philipp Gegenwart, Lode Pollet und Ludovic D. C. Jaubert
Frustration on a centered pyrochlore lattice in metal-organic frameworks
Physical Review Research 5, L022018 (2023)
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Vera P. Bader, Clemens Ritter, Elias Papke, Philipp Gegenwart und Alexander A. Tsirlin
Geometrical frustration and incommensurate magnetic order in Na3RuO4 with two triangular motifs
Physical Review B 108, 144424 (2023)
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Kan Zhao, Xuejiao Chen, Zhaosheng Wang, Jinyu Liu, Jiating Wu, Chuanying Xi, Xiaodong Lv, Lei Li, Zhicheng Zhong und Philipp Gegenwart
Magnetic tuning of band topology evidenced by exotic quantum oscillations in the Dirac semimetal EuMnSb2
Physical Review B 107, L081112 (2023)
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Franziska A. Breitner, Julian Kaiser, Anton Jesche und Philipp Gegenwart
Metallic conductivity in Na-deficient structural domain walls in the spin-orbit Mott insulator Na2IrO3
Physical Review B 108, 235130 (2023)
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Franziska Grußler, Mamoun Hemmida, Sebastian Bachus, Yurii Skourski, Hans-Albrecht Krug von Nidda, Philipp Gegenwart und Alexander A. Tsirlin
Role of alkaline metal in the rare-earth triangular antiferromagnet KYbO2
Physical Review B 107, 224416 (2023)
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Franziska A. Breitner, Anton Jesche, Vladimir Tsurkan und Philipp Gegenwart
Thermal decomposition of the Kitaev material α−RuCl3 and its influence on low-temperature behavior
Physical Review B 108, 045103 (2023)
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L. Salamakha, O. Sologub, A. Riss, H. Michor, H. Müller, B. Stöger, G. Giester, P. Rogl, A. Sakai, Philipp Gegenwart und E. Bauer
Complex transport and magnetism of the ternary boride YbPt5B2
Physical Review B 105, 205112 (2022)
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Vera P. Bader, Jan Langmann, Philipp Gegenwart und Alexander A. Tsirlin
Deformation of the triangular spin-12 lattice in Na2SrCo(PO4)2
Physical Review B 106, 054415 (2022)
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A. Wörl, M. Garst, Y. Yamane, S. Bachus, T. Onimaru und Philipp Gegenwart
Divergent thermal expansion and Grüneisen ratio in a quadrupolar Kondo metal
Physical Review Research 4, L022053 (2022)
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Ulrich Eckern und Philipp Gegenwart
From electronic correlations to functionality [Guest Editorial]
physica status solidi (b) 259, 2200125 (2022)
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Alexander A. Tsirlin und Philipp Gegenwart
Kitaev magnetism through the prism of lithium iridate
physica status solidi (b) 259, 2100146 (2022)
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Bin Shen, Franziska Breitner, Danil Prishchenko, Rudra Sekhar Manna, Anton Jesche, Maximilian L. Seidler, Philipp Gegenwart und Alexander A. Tsirlin
Pressure-induced dimerization and collapse of antiferromagnetism in the Kitaev material α−Li2IrO3
Physical Review B 105, 054412 (2022)
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A. Revelli, M. Moretti Sala, G. Monaco, M. Magnaterra, J. Attig, L. Peterlini, T. Dey, Alexander A. Tsirlin, Philipp Gegenwart, T. Fröhlich, M. Braden, C. Grams, Joachim Hemberger, P. Becker, P. H. M. van Loosdrecht, D. I. Khomskii, J. van den Brink, M. Hermanns und M. Grüninger
Quasimolecular electronic structure of the spin-liquid candidate Ba3InIr2O9
Physical Review B 106, 155107 (2022)
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Donald M. Evans, Ola G. Grendal, Lilian Prodan, Maximilian Winkler, Noah Winterhalter-Stocker, Philipp Gegenwart, Somnath Ghara, Joachim Deisenhofer, István Kézsmárki und Vladimir Tsurkan
Resolving structural changes and symmetry lowering in spinel FeCr2S4
Physical Review B 105, 174107 (2022)
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M. Majumder, R. Gupta, H. Luetkens, R. Khasanov, O. Stockert, Philipp Gegenwart und V. Fritsch
Spin-liquid signatures in the quantum critical regime of pressurized CePdAl
Physical Review B 105, L180402 (2022)
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Sebastian Bachus, D. A. S. Kaib, Anton Jesche, Vladimir Tsurkan, Alois Loidl, S. M. Winter, Alexander A. Tsirlin, R. Valentí und Philipp Gegenwart
Angle-dependent thermodynamics of α−RuCl3
Physical Review B 103, 054440 (2021)
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Sven Esser, Jiongyao Wu, Sebastian Esser, Robert Gruhl, Anton Jesche, Vladimir Roddatis, Vasily Moshnyaga, Rossitza Pentcheva und Philipp Gegenwart
Angular dependence of Hall effect and magnetoresistance in SrRuO3−SrIrO3 heterostructures
Physical Review B 103, 214430 (2021)
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Y. Shimura, Andreas Wörl, M. Sundermann, S. Tsuda, D. T. Adroja, A. Bhattacharyya, A. M. Strydom, A. D. Hillier, F. L. Pratt, A. Gloskovskii, A. Severing, T. Onimaru, Philipp Gegenwart und T. Takabatake
Antiferromagnetic correlations in strongly valence fluctuating CeIrSn
Physical Review Letters 126, 217202 (2021)
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Jiongyao Wu, Marcel Zöllner, Sebastian Esser, Vijaya Begum, Günther Prinz, Axel Lorke, Philipp Gegenwart und Rossitza Pentcheva
Electronic reconstruction and charge transfer in strained Sr2CoIrO6 double perovskite
Physical Review B 104, 205126 (2021)
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Yoshifumi Tokiwa, Sebastian Bachus, Kavita Kavita, Anton Jesche, Alexander A. Tsirlin und Philipp Gegenwart
Frustrated magnet for adiabatic demagnetization cooling to milli-Kelvin temperatures
Communications Materials 2, 42 (2021)
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Bin Shen, Anton Jesche, Maximilian L. Seidler, Friedrich Freund, Philipp Gegenwart und Alexander A. Tsirlin
Interplay of magnetism and dimerization in the pressurized Kitaev material β−Li2IrO3
Physical Review B 104, 134426 (2021)
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J. Fink, E. D. L. Rienks, M. Yao, R. Kurleto, J. Bannies, S. Aswartham, I. Morozov, S. Wurmehl, T. Wolf, F. Hardy, C. Meingast, H. S. Jeevan, J. Maiwald, Philipp Gegenwart, C. Felser und B. Büchner
Linkage between scattering rates and superconductivity in doped ferropnictides
Physical Review B 103, 155119 (2021)
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Thomas Dziuba, Ina-Marie Pietsch, Máté Stark, Georg A. Traeger, Philipp Gegenwart und Martin Wenderoth
Surface conductivity of the honeycomb spin–orbit Mott insulator Na2IrO3
physica status solidi (b) 258, 2000421 (2021)
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Mamoun Hemmida, N. Winterhalter-Stocker, D. Ehlers, Hans-Albrecht Krug von Nidda, M. Yao, J. Bannies, E. D. L. Rienks, R. Kurleto, C. Felser, B. Büchner, J. Fink, Stefan Gorol, T. Förster, S. Arsenijevic, V. Fritsch und Philipp Gegenwart
Topological magnetic order and superconductivity in EuRbFe4As4
Physical Review B 103, 195112 (2021)
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R. Miki, Kan Zhao, T. Hajiri, Philipp Gegenwart und H. Asano
Epitaxial growth and orientation-dependent anomalous Hall effect of noncollinear antiferromagnetic Mn3Ni0.35Cu0.65N films
Journal of Applied Physics 127, 113907 (2020)
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M. Majumder, M. Prinz-Zwick, Stephan Reschke, A. Zubtsovskii, T. Dey, F. Freund, Norbert Büttgen, Anton Jesche, István Kézsmárki, Alexander A. Tsirlin und Philipp Gegenwart
Field evolution of low-energy excitations in the hyperhoneycomb magnet β−Li2IrO3
Physical Review B 101, 214417 (2020)
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Sebastian Bachus, Ilia A. Iakovlev, Yuesheng Li, Andreas Wörl, Yoshifumi Tokiwa, Langsheng Ling, Qingming Zhang, Vladimir V. Mazurenko, Philipp Gegenwart und Alexander A. Tsirlin
Field evolution of the spin-liquid candidate YbMgGaO4
Physical Review B 102, 104433 (2020)
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A. Revelli, M. Moretti Sala, G. Monaco, C. Hickey, P. Becker, F. Freund, Anton Jesche, Philipp Gegenwart, T. Eschmann, F. L. Buessen, S. Trebst, P. H. M. van Loosdrecht, J. van den Brink und M. Grüninger
Fingerprints of Kitaev physics in the magnetic excitations of honeycomb iridates
Physical Review Research 2, 043094 (2020)
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Y. Shimura, T. Kitazawa, S. Tsuda, Sebastian Bachus, Yoshifumi Tokiwa, Philipp Gegenwart, R. Yamamoto, Y. Yamane, I. Nishihara, K. Umeo, T. Onimaru, T. Takabatake, H. T. Hirose, N. Kikugawa, T. Terashima und S. Uji
Fragile superheavy Fermi liquid in YbCo2Zn20
Physical Review B 101, 241102 (2020)
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Oliver Stockert, Jens-Uwe Hoffmann, Martin Mühlbauer, Anatoliy Senyshyn, Michael M. Koza, Alexander A. Tsirlin, F. Maximilian Wolf, Sebastian Bachus, Philipp Gegenwart, Roman Movshovich, Svilen Bobev und Veronika Fritsch
Magnetic frustration in a metallic fcc lattice
Physical Review Research 2, 013183 (2020)
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Yuesheng Li, Sebastian Bachus, Hao Deng, Wolfgang Schmidt, Henrik Thoma, Vladimir Hutanu, Yoshifumi Tokiwa, Alexander A. Tsirlin und Philipp Gegenwart
Partial up-up-down order with the continuously distributed order parameter in the triangular antiferromagnet TmMgGaO4
Physical Review X 10, 011007 (2020)
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Mayukh Majumder, Gediminas Simutis, Ines E. Collings, Jean-Christophe Orain, Tusharkanti Dey, Yuesheng Li, Philipp Gegenwart und Alexander A. Tsirlin
Persistent spin dynamics in the pressurized spin-liquid candidate YbMgGaO4
Physical Review Research 2, 023191 (2020)
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Kan Zhao, Hao Deng, Hua Chen, Kate A. Ross, Vaclav Petříček, Gerrit Günther, Margarita Russina, Vladimir Hutanu und Philipp Gegenwart
Realization of the kagome spin ice state in a frustrated intermetallic compound
Science 367, 1218-1223 (2020)
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Ying Li, Alexander A. Tsirlin, Tusharkanti Dey, Philipp Gegenwart, Roser Valentí und Stephen M. Winter
Soft and anisotropic local moments in 4d and 5d mixed-valence M2O9 dimers
Physical Review B 102, 235142 (2020)
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Yuesheng Li, Philipp Gegenwart und Alexander A. Tsirlin
Spin liquids in geometrically perfect triangular antiferromagnets
Journal of Physics: Condensed Matter 32, 224004 (2020)
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R. Mandal, M. Hirsbrunner, V. Roddatis, R. Gruhl, L. Schüler, U. Roß, S. Merten, Philipp Gegenwart und V. Moshnyaga
Strain-driven structure-ferroelectricity relationship in hexagonal TbMnO3 films
Physical Review B 102, 104106 (2020)
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Sebastian Bachus, D. A. S. Kaib, Yoshifumi Tokiwa, Anton Jesche, Vladimir Tsurkan, Alois Loidl, S. M. Winter, Alexander A. Tsirlin, R. Valentí und Philipp Gegenwart
Thermodynamic perspective on field-induced behavior of α−RuCl3
Physical Review Letters 125, 097203 (2020)
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J. Xu, Owen Benton, V. K. Anand, A. T. M. N. Islam, T. Guidi, G. Ehlers, E. Feng, Y. Su, A. Sakai, Philipp Gegenwart und B. Lake
Anisotropic exchange Hamiltonian, magnetic phase diagram, and domain inversion of Nd2Zr2O7
Physical Review B 99, 144420 (2019)
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M. Majumder, Florian Freund, T. Dey, M. Prinz-Zwick, Norbert Büttgen, Y. Skourski, Anton Jesche, Alexander A. Tsirlin und Philipp Gegenwart
Anisotropic temperature-field phase diagram of single crystalline β−Li2IrO3: magnetization, specific heat, and Li7 NMR study
Physical Review Materials 3, 074408 (2019)
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K. Zhao, T. Hajiri, H. Chen, R. Miki, H. Asano und Philipp Gegenwart
Anomalous Hall effect in the noncollinear antiferromagnetic antiperovskite Mn3Ni1−xCuxN
Physical Review B 100, 045109 (2019)
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Alexander A. Tsirlin und Philipp Gegenwart
Frustration mit erstaunlicher Wirkung: Quantenspinflüssigkeiten
Physik in unserer Zeit 50, 71-77 (2019)
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Lei Ding, Pascal Manuel, Sebastian Bachus, Franziska Grußler, Philipp Gegenwart, John Singleton, Roger D. Johnson, Helen C. Walker, Devashibhai T. Adroja, Adrian D. Hillier und Alexander A. Tsirlin
Gapless spin-liquid state in the structurally disorder-free triangular antiferromagnet NaYbO2
Physical Review B 100, 144432 (2019)
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J. G. Vale, C. D. Dashwood, E. Paris, L. S. I. Veiga, M. Garcia-Fernandez, A. Nag, A. Walters, Ke-Jin Zhou, I.-M. Pietsch, Anton Jesche, Philipp Gegenwart, R. Coldea, T. Schmitt und D. F. McMorrow
High-resolution resonant inelastic x-ray scattering study of the electron-phonon coupling in honeycomb α−Li2IrO3
Physical Review B 100, 224303 (2019)
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A. Wörl, T. Onimaru, Yoshifumi Tokiwa, Y. Yamane, K. T. Matsumoto, T. Takabatake und Philipp Gegenwart
Highly anisotropic strain dependencies in PrIr2Zn20
Physical Review B 99, 081117(R) (2019)
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V. Hermann, Jihaan Ebad-Allah, F. Freund, Anton Jesche, Alexander A. Tsirlin, Philipp Gegenwart und Christine A. Kuntscher
Optical signature of the pressure-induced dimerization in the honeycomb iridate α−Li2IrO3
Physical Review B 99, 235116 (2019)
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V. Hermann, S. Biswas, Jihaan Ebad-Allah, F. Freund, Anton Jesche, Alexander A. Tsirlin, M. Hanfland, D. Khomskii, Philipp Gegenwart, R. Valentí und Christine A. Kuntscher
Pressure-induced formation of rhodium zigzag chains in the honeycomb rhodate Li2RhO3
Physical Review B 100, 064105 (2019)
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Hengcan Zhao, Jiahao Zhang, Meng Lyu, Sebastian Bachus, Yoshifumi Tokiwa, Philipp Gegenwart, Shuai Zhang, Jinguang Cheng, Yi-feng Yang, Genfu Chen, Yosikazu Isikawa, Qimiao Si, Frank Steglich und Peijie Sun
Quantum-critical phase from frustrated magnetism in a strongly correlated metal
Nature Physics 15, 1261-1266 (2019)
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Yuesheng Li, Sebastian Bachus, Benqiong Liu, Igor Radelytskyi, Alexandre Bertin, Astrid Schneidewind, Yoshifumi Tokiwa, Alexander A. Tsirlin und Philipp Gegenwart
Rearrangement of uncorrelated valence bonds evidenced by low-energy spin excitations in YbMgGaO4
Physical Review Letters 122, 137201 (2019)
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Sungkyun Choi, S. Manni, J. Singleton, C. V. Topping, T. Lancaster, S. J. Blundell, D. T. Adroja, V. Zapf, Philipp Gegenwart und R. Coldea
Spin dynamics and field-induced magnetic phase transition in the honeycomb Kitaev magnet α−Li2IrO3
Physical Review B 99, 054426 (2019)
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R. Kumar, Tusharkanti Dey, P. M. Ette, K. Ramesha, Atasi Chakraborty, I. Dasgupta, R. Eremina, Sándor Tóth, A. Shahee, S. Kundu, M. Prinz-Zwick, A. A. Gippius, Hans-Albrecht Krug von Nidda, Norbert Büttgen, Philipp Gegenwart und A. V. Mahajan
Structural, thermodynamic, and local probe investigations of the honeycomb material Ag3LiMn2O6
Physical Review B 99, 144429 (2019)
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Ines Collings, Rudra Sekhar Manna, Alexander A. Tsirlin, Maxim Bykov, Elena Bykova, Michael Hanfland, Philipp Gegenwart, Sander van Smaalen, Leonid Dubrovinsky und Natalia Dubrovinskaia
Structure–magnetic property correlations in metal–formate frameworks at high pressure [Abstract]
Acta Crystallographica Section A: Foundations and Advances 75, e301 (2019)
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M.-H. Schubert, Yoshifumi Tokiwa, S.-H. Hübner, M. Mchalwat, E. Blumenröther, H. S. Jeevan und Philipp Gegenwart
Tuning low-energy scales in YbRh2Si2 by non-isoelectronic substitution and pressure
Physical Review Research 1, 032004(R) (2019)
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R. Kumar, Tusharkanti Dey, P. M. Ette, K. Ramesha, Atasi Chakraborty, I. Dasgupta, J. C. Orain, C. Baines, Sándor Tóth, A. Shahee, S. Kundu, M. Prinz-Zwick, A. A. Gippius, Norbert Büttgen, Philipp Gegenwart und A. V. Mahajan
Unconventional magnetism in the 4d4-based S=1 honeycomb system Ag3LiRu2O6
Physical Review B 99, 054417 (2019)
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Ryszard Matysiak, Philipp Gegenwart, Akira Ochiai und Frank Steglich
Application of numerical quantum transfer-matrix approach in the randomly diluted quantum spin chains
Lecture Notes in Computer Science 10778, 359-367 (2018)
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Parallel processing and applied mathematics: 12th International Conference, PPAM 2017, Lublin, Poland, September 10-13, 2017, Revised Selected Papers, Part II

M. Majumder, R. S. Manna, G. Simutis, J. C. Orain, T. Dey, F. Freund, Anton Jesche, R. Khasanov, P. K. Biswas, E. Bykova, N. Dubrovinskaia, L. S. Dubrovinsky, R. Yadav, L. Hozoi, S. Nishimoto, Alexander A. Tsirlin und Philipp Gegenwart
Breakdown of magnetic order in the pressurized Kitaev iridate β−Li2IrO3
Physical Review Letters 120, 237202 (2018)
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K. Zhao, J. K. Glasbrenner, H. Gretarsson, Dominik Schmitz, J. Bednarcik, M. Etter, J. P. Sun, Rudra S. Manna, A. Al-Zein, S. Lafuerza, Wolfgang Scherer, J. G. Cheng und Philipp Gegenwart
Collapsed tetragonal phase as a strongly covalent and fully nonmagnetic state: persistent magnetism with interlayer As–As bond formation in Rh-doped Ca0.8Sr0.2Fe2As2
Physical Review B 97, 020510(R) (2018)
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V. Hermann, M. Altmeyer, Jihaan Ebad-Allah, Florian Freund, Anton Jesche, Alexander A. Tsirlin, M. Hanfland, Philipp Gegenwart, I. I. Mazin, D. I. Khomskii, R. Valentí und Christine A. Kuntscher
Competition between spin-orbit coupling, magnetism, and dimerization in the honeycomb iridates: α−Li2IrO3 under pressure
Physical Review B 97, 020104(R) (2018)
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Yoshifumi Tokiwa, Takuya Yamashita, Daiki Terazawa, Kenta Kimura, Yuichi Kasahara, Takafumi Onishi, Yasuyuki Kato, Mario Halim, Philipp Gegenwart, Takasada Shibauchi, Satoru Nakatsuji, Eun-Gook Moon und Yuji Matsuda
Discovery of emergent photon and monopoles in a quantum spin liquid
Journal of the Physical Society of Japan 87, 064702 (2018)
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Guiming Pang, Michael Smidman, Jinglei Zhang, Lin Jiao, Zongfa Weng, Emilian M. Nica, Ye Chen, Wenbing Jiang, Yongjun Zhang, Wu Xie, Hirale S. Jeevan, Hanoh Lee, Philipp Gegenwart, Frank Steglich, Qimiao Si und Huiqiu Yuan
Fully gapped d-wave superconductivity in CeCu2Si2
Proceedings of the National Academy of Sciences 115, 5343-5347 (2018)
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Yuesheng Li, Sebastian Bachus, Yoshifumi Tokiwa, Alexander A. Tsirlin und Philipp Gegenwart
Gapped ground state in the zigzag pseudospin-1/2 quantum antiferromagnetic chain compound PrTiNbO6
Physical Review B 97, 184434 (2018)
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Jannis Maiwald, I. I. Mazin und Philipp Gegenwart
Microscopic Theory of Magnetic Detwinning in Iron-Based Superconductors with Large-Spin Rare Earths
Physical Review X 8, 011011-1-011011-9 (2018)
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Franziska Weickert, Philipp Gegenwart, Christoph Geibel, Wolf Assmus und Frank Steglich
Observation of two critical points linked to the high-field phase B in CeCu2Si2
Physical Review B 98, 085115 (2018)
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Ines E. Collings, Rudra Sekhar Manna, Alexander A. Tsirlin, Maxim Bykov, Elena Bykova, Michael Hanfland, Philipp Gegenwart, Sander van Smaalen, Leonid Dubrovinsky und Natalia Dubrovinskaia
Pressure dependence of spin canting in ammonium metal formate antiferromagnets
Physical Chemistry Chemical Physics 20, 24465-24476 (2018)
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K. Zhao, E. Golias, Q. H. Zhang, M. Krivenkov, Anton Jesche, L. Gu, O. Rader, I. I. Mazin und Philipp Gegenwart
Quantum oscillations and Dirac dispersion in the BaZnBi2 semimetal guaranteed by local Zn vacancy order
Physical Review B 97, 115166 (2018)
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S. Esser, C. F. Chang, C.-Y. Kuo, S. Merten, V. Roddatis, T. D. Ha, Anton Jesche, V. Moshnyaga, H.-J. Lin, A. Tanaka, C. T. Chen, L. H. Tjeng und Philipp Gegenwart
Strain-induced changes of the electronic properties of B-site ordered double-perovskite Sr2CoIrO6 thin films
Physical Review B 97, 205121 (2018)
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Veronika Fritsch, Stefan Lucas, Zita Huesges, Akito Sakai, Wolfram Kittler, Christian Taubenheim, Sarah Woitschach, Bjørn Pedersen, Kai Grube, Burkhard Schmidt, Philipp Gegenwart, Oliver Stockert und Hilbert von Löhneysen
CePdAl: a Kondo lattice with partial frustration
Journal of Physics: Conference Series 807, 032003 (2017)
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Philipp Gegenwart
Classification of materials with divergent magnetic Grüneisen parameter
Philosophical Magazine 97, 3415-3427 (2017)
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Yuesheng Li, Devashibhai Adroja, Robert I. Bewley, David Voneshen, Alexander A. Tsirlin, Philipp Gegenwart und Qingming Zhang
Crystalline electric-field randomness in the triangular lattice spin-liquid YbMgGaO4
Physical Review Letters 118, 107202 (2017)
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I. Avigo, S. Thirupathaiah, E. D. L. Rienks, L. Rettig, A. Charnukha, M. Ligges, R. Cortes, J. Nayak, Hirale S. Jeevan, T. Wolf, Y. Huang, S. Wurmehl, M. I. Sturza, Philipp Gegenwart, M. S. Golden, L. X. Yang, K. Rossnagel, M. Bauer, B. Büchner, Matthias Vojta, M. Wolf, C. Felser, J. Fink und U. Bovensiepen
Electronic structure and ultrafast dynamics of FeAs-based superconductors by angle- and time-resolved photoemission spectroscopy
physica status solidi (b) 254, 1600382 (2017)
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S. Lucas, K. Grube, C.-L. Huang, A. Sakai, S. Wunderlich, E. L. Green, J. Wosnitza, Veronika Fritsch, Philipp Gegenwart, O. Stockert und Hilbert von Löhneysen
Entropy evolution in the magnetic phases of partially frustrated CePdAl
Physical Review Letters 118, 107204 (2017)
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J. Fink, E. D. L. Rienks, S. Thirupathaiah, J. Nayak, A. van Roekeghem, S. Biermann, T. Wolf, P. Adelmann, Hirale S. Jeevan, Philipp Gegenwart, S. Wurmehl, C. Felser und B. Büchner
Experimental evidence for importance of Hund's exchange interaction for incoherence of charge carriers in iron-based superconductors
Physical Review B 95, 144513 (2017)
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V. Hermann, Jihaan Ebad-Allah, Florian Freund, I. M. Pietsch, Anton Jesche, Alexander A. Tsirlin, Joachim Deisenhofer, M. Hanfland, Philipp Gegenwart und Christine A. Kuntscher
High-pressure versus isoelectronic doping effect on the honeycomb iridate Na2 IrO3
Physical Review B 96, 195137 (2017)
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Jannis Maiwald und Philipp Gegenwart
Interplay of 4f and 3d moments in EuFe2As2 iron pnictides
physica status solidi b 254, 1600150 (2017)
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Tanmoy Chakraborty, Harkirat Singh, Dipanjan Chaudhuri, Hirale S. Jeevan, Philipp Gegenwart und Chiranjib Mitra
Investigation of thermodynamic properties of Cu(NH3)4SO4·H2O, a Heisenberg spin chain compound
Journal of Magnetism and Magnetic Materials 439, 101-106 (2017)
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Jonathan Pelliciari, Kenji Ishii, Marcus Dantz, Xingye Lu, Daniel E. McNally, Vladimir N. Strocov, Lingyi Xing, Xiancheng Wang, Changqing Jin, Hirale S. Jeevan, Philipp Gegenwart und Thorsten Schmitt
Local and collective magnetism of EuFe2As2
Physical Review B 95, 115152 (2017)
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P. Khuntia, S. Manni, F. R. Foronda, T. Lancaster, S. J. Blundell, Philipp Gegenwart und M. Baenitz
Local magnetism and spin dynamics of the frustrated honeycomb rhodate Li2RhO3
Physical Review B 96, 094432 (2017)
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Stephen M Winter, Alexander A. Tsirlin, Maria Daghofer, Jeroen van den Brink, Yogesh Singh, Philipp Gegenwart und Roser Valentí
Models and materials for generalized Kitaev magnetism
Journal of Physics: Condensed Matter 29, 493002 (2017)
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Yuesheng Li, Devashibhai Adroja, David Voneshen, Robert I. Bewley, Qingming Zhang, Alexander A. Tsirlin und Philipp Gegenwart
Nearest-neighbour resonating valence bonds in YbMgGaO4
Nature Communications 8, 15814 (2017)
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David Neubauer, Artem V. Pronin, Sina Zapf, Johannes Merz, Hirale S. Jeeven, Wen-He Jiao, Philipp Gegenwart, Guang-Han Cao und Martin Dressel
Optical properties of superconducting EuFe2(As1-xPx)2
physica status solidi (b) 254, 1600148 (2017)
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Tusharkanti Dey, M. Majumder, J. C. Orain, A. Senyshyn, M. Prinz-Zwick, Sebastian Bachus, Yoshifumi Tokiwa, F. Bert, P. Khuntia, Norbert Büttgen, Alexander A. Tsirlin und Philipp Gegenwart
Persistent low-temperature spin dynamics in the mixed-valence iridate Ba3InIr2O9
Physical Review B 96, 174411 (2017)
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R. Küchler, A. Wörl, Philipp Gegenwart, M. Berben, B. Bryant und S. Wiedmann
The world’s smallest capacitive dilatometer, for high-resolution thermal expansion and magnetostriction in high magnetic fields
Review of Scientific Instruments 88, 083903 (2017)
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R. Küchler, Christian Stingl, Yoshifumi Tokiwa, M. S. Kim, T. Takabatake und Philipp Gegenwart
Uniaxial stress tuning of geometrical frustration in a Kondo lattice
Physical Review B 96, 241110(R) (2017)
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R. Küchler, Christian Stingl und Philipp Gegenwart
A uniaxial stress capacitive dilatometer for high-resolution thermal expansion and magnetostriction under multiextreme conditions
Review of Scientific Instruments 87, 073903 (2016)
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G. Kamieniarz, R. Matysiak, Philipp Gegenwart, A. Ochiai und F. Steglich
Bose glass behavior in (Yb1−xLux)4As3 representing randomly diluted quantum spin-1/2 chains
Physical Review B 94, 100403(R) (2016)
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Sina Zapf, David Neubauer, Kirk W. Post, Alina Kadau, Johannes Merz, Conrad Clauss, Anja Löhle, Hirale S. Jeevan, Philipp Gegenwart, Dimitri N. Basov und Martin Dressel
Electronic scattering effects in europium-based iron pnictides
Comptes Rendus Physique 17, 188-196 (2016)
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Philipp Gegenwart
Grüneisen parameter studies on heavy fermion quantum criticality
Reports on Progress in Physics 79, 114502 (2016)
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S. C. Williams, R. D. Johnson, Florian Freund, Sungkyun Choi, Anton Jesche, I. Kimchi, S. Manni, A. Bombardi, P. Manuel, Philipp Gegenwart und R. Coldea
Incommensurate counterrotating magnetic order stabilized by Kitaev interactions in the layered honeycomb α−Li2IrO3
Physical Review B 93, 195158 (2016)
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Yoshifumi Tokiwa, M. Mchalwat, R. S. Perry und Philipp Gegenwart
Multiple metamagnetic quantum criticality in Sr3Ru2O7
Physical Review Letters 116, 226402 (2016)
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Yuesheng Li, Devashibhai Adroja, Pabitra K. Biswas, Peter J. Baker, Qian Zhang, Juanjuan Liu, Alexander A. Tsirlin, Philipp Gegenwart und Qingming Zhang
Muon spin relaxation evidence for the U(1) quantum spin-liquid ground state in the triangular antiferromagnet YbMgGaO4
Physical Review Letters 117, 097201 (2016)
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Akito Sakai, Stefan Lucas, Philipp Gegenwart, Oliver Stockert, Hilbert von Löhneysen und Veronika Fritsch
Signature of frustrated moments in quantum critical CePd1−xNixAl
Physical Review B 94, 220405(R) (2016)
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Florian Freund, S. C. Williams, R. D. Johnson, R. Coldea, Philipp Gegenwart und Anton Jesche
Single crystal growth from separated educts and its application to lithium transition-metal oxides
Scientific Reports 6, 35362-1-35362-6 (2016)
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Yoshifumi Tokiwa, Boy Piening, Hirale S. Jeevan, Sergey L. Bud'ko, Paul C. Canfield und Philipp Gegenwart
Super-heavy electron material as metallic refrigerant for adiabatic demagnetization cooling
Science Advances 2, e1600835 (2016)
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Akito Sakai, Kentaro Kitagawa, Kazuyuki Matsubayashi, Makoto Iwatani und Philipp Gegenwart
T/B scaling without quasiparticle mass divergence: YbCo2Ge4
Physical Review B 94, 041106(R) (2016)
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Diana Geiger, Uwe S. Pracht, Martin Dressel, Jernej Mravlje, Melanie Schneider, Philipp Gegenwart und Marc Scheffler
Terahertz conductivity of Sr1−xCaxRuO3
Physical Review B 93, 165131 (2016)
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M. Lorenz, M. S. Ramachandra Rao, T. Venkatesan, E. Fortunato, P. Barquinha, R. Branquinho, D. Salgueiro, R. Martins, E. Carlos, A. Liu, F. K. Shan, M. Grundmann, Hans Boschker, J. Mukherjee, M. Priyadarshini, N. DasGupta, D. J. Rogers, Ferechteh Hosseini Teherani, E. V. Sandana, P. Bove, K. Rietwyk, A. Zaban, A. Veziridis, Anke Weidenkaff, M. Muralidhar, M. Murakami, S. Abel, J. Fompeyrine, J. Zuniga-Perez, R. Ramesh, N. A. Spaldin, S. Ostanin, V. Borisov, I. Mertig, V. Lazenka, G. Srinivasan, W. Prellier, M. Uchida, M. Kawasaki, R. Pentcheva, Philipp Gegenwart, F. Miletto Granozio, J. Fontcuberta und N. Pryds
The 2016 oxide electronic materials and oxide interfaces roadmap
Journal of Physics D: Applied Physics 49, 433001 (2016)
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N. Nembrini, S. Peli, F. Banfi, G. Ferrini, Yogesh Singh, Philipp Gegenwart, R. Comin, K. Foyevtsova, A. Damascelli, A. Avella und C. Giannetti
Tracking local magnetic dynamics via high-energy charge excitations in a relativistic Mott insulator
Physical Review B 94, 201119(R) (2016)
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Yoshifumi Tokiwa, Christian Stingl, Moo-Sung Kim, Toshiro Takabatake und Philipp Gegenwart
Characteristic signatures of quantum criticality driven by geometrical frustration
Science Advances 1, e1500001 (2015)
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S. Agrestini, Z. Hu, C.-Y. Kuo, M. W. Haverkort, K.-T. Ko, N. Hollmann, Q. Liu, E. Pellegrin, M. Valvidares, J. Herrero-Martin, P. Gargiani, Philipp Gegenwart, M. Schneider, S. Esser, A. Tanaka, A. C. Komarek und L. H. Tjeng
Electronic and spin states of SrRuO3 thin films: an x-ray magnetic circular dichroism study
Physical Review B 91, 075127 (2015)
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F. Lüpke, S. Manni, S. C. Erwin, I. I. Mazin, Philipp Gegenwart und M. Wenderoth
Highly unconventional surface reconstruction of Na2IrO3 with persistent energy gap
Physical Review B 91, 041405(R) (2015)
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Philipp Gegenwart und Simon Trebst
Kitaev matter
Nature Physics 11, 444-445 (2015)
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J. Fink, A. Charnukha, E. D. L. Rienks, Z. H. Liu, S. Thirupathaiah, I. Avigo, F. Roth, Hirale S. Jeevan, Philipp Gegenwart, M. Roslova, I. Morozov, S. Wurmehl, U. Bovensiepen, S. Borisenko, Matthias Vojta und B. Büchner
Non-Fermi-liquid scattering rates and anomalous band dispersion in ferropnictides
Physical Review B 92, 201106(R) (2015)
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Philipp Gegenwart, Frank Steglich, Christoph Geibel und M. Brando
Novel types of quantum criticality in heavy-fermion systems
The European Physical Journal Special Topics 224, 975-996 (2015)
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K. Zhao, Christian Stingl, Rudra S. Manna, C. Q. Jin und Philipp Gegenwart
Reversible tuning of the collapsed tetragonal phase transition in CaFe2As2 by separate control of chemical pressure and electron doping
Physical Review B 92, 235132 (2015)
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S. Nandi, W. T. Jin, Y. Xiao, Y. Su, S. Price, D. K. Shukla, J. Strempfer, H. S. Jeevan, Philipp Gegenwart und Th. Brückel
Coexistence of superconductivity and ferromagnetism in P-doped EuFe2As2
Physical Review B 89, 014512 (2014)
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S. Manni, Sungkyun Choi, I. I. Mazin, R. Coldea, Michaela Altmeyer, Harald O. Jeschke, Roser Valentí und Philipp Gegenwart
Effect of isoelectronic doping on the honeycomb-lattice iridate A2IrO3
Physical Review B 89, 245113 (2014)
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S. Manni, Yoshifumi Tokiwa und Philipp Gegenwart
Effect of nonmagnetic dilution in the honeycomb-lattice iridates Na2IrO3 and Li2IrO3
Physical Review B 89, 241102(R) (2014)
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T. Goltz, S. Kamusella, H. S. Jeevan, Philipp Gegenwart, H. Luetkens, P. Materne, J. Spehling, R. Sarkar und H.-H. Klauss
Interplay of magnetism and superconductivity in EuFe2(As1-xPx)2 single crystals probed by muon spin rotation and 57Fe Mössbauer spectroscopy
Journal of Physics: Conference Series 551, 012025 (2014)
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M. Schneider, D. Geiger, S. Esser, U. S. Pracht, C. Stingl, Y. Tokiwa, V. Moshnyaga, I. Sheikin, J. Mravlje, M. Scheffler und Philipp Gegenwart
Low-energy electronic properties of clean CaRuO3: elusive Landau quasiparticles
Physical Review Letters 112, 206403 (2014)
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S. Nandi, W. T. Jin, Y. Xiao, Y. Su, S. Price, W. Schmidt, K. Schmalzl, T. Chatterji, Hirale S. Jeevan, Philipp Gegenwart und Th. Brückel
Magnetic structure of the Eu2+ moments in superconducting EuFe2(As1−xPx)2 with x=0.19
Physical Review B 90, 094407 (2014)
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Sven Esser, Sebastian Esser, Christian Stingl und Philipp Gegenwart
Nonlinear conductivity in CaRuO3 thin films measured by short current pulses
The European Physical Journal B 87, 133 (2014)
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Sina Zapf, Christian Stingl, Kirk W. Post, Jannis Maiwald, N. Bach, I. M. Pietsch, David Neubauer, Anja Löhle, Conrad Clauss, S. Jiang, Hirale S. Jeevan, Dimitri N. Basov, Philipp Gegenwart und Martin Dressel
Persistent detwinning of iron-pnictide EuFe2As2 crystals by small external magnetic fields
Physical Review Letters 113, 227001 (2014)
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Y. Tokiwa, J. J. Ishikawa, S. Nakatsuji und Philipp Gegenwart
Quantum criticality in a metallic spin liquid
Nature Materials 13, 356-359 (2014)
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A. Biffin, R. D. Johnson, Sungkyun Choi, Florian Freund, S. Manni, A. Bombardi, P. Manuel, Philipp Gegenwart und R. Coldea
Unconventional magnetic order on the hyperhoneycomb Kitaev lattice inβ−Li2IrO3: full solution via magnetic resonant x-ray diffraction
Physical Review B 90, 205116 (2014)
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J. K. Dong, Y. Tokiwa, S. L. Bud’ko, P. C. Canfield und Philipp Gegenwart
Anomalous reduction of the Lorenz ratio at the quantum critical point in YbAgGe
Physical Review Letters 110, 176402 (2013)
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I. Avigo, R. Cortés, L. Rettig, S. Thirupathaiah, H. S. Jeevan, Philipp Gegenwart, T. Wolf, M. Ligges, M. Wolf, J. Fink und U. Bovensiepen
Coherent excitations and electron–phonon coupling in Ba/EuFe2As2 compounds investigated by fem to second time- and angle-resolved photoemission spectroscopy
Journal of Physics: Condensed Matter 25, 094003 (2013)
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H. Gretarsson, J. P. Clancy, X. Liu, J. P. Hill, Emil Bozin, Yogesh Singh, S. Manni, Philipp Gegenwart, Jungho Kim, A. H. Said, D. Casa, T. Gog, M. H. Upton, Heung-Sik Kim, J. Yu, Vamshi M. Katukuri, L. Hozoi, Jeroen van den Brink und Young-June Kim
Crystal-field splitting and correlation effect on the electronic structure of A2IrO3
Physical Review Letters 110, 076402 (2013)
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J. Sichelschmidt, H. S. Jeevan, M. Mchalwat und Philipp Gegenwart
Electron spin resonance of the Yb 4f-moment in Yb(Rh1−xFex)2Si2
physica status solidi (b) 250, 495-497 (2013)
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C. Stingl, R. S. Perry, Y. Maeno und Philipp Gegenwart
Electronic nematicity and its relation to quantum criticality in Sr3Ru2O7 studied by thermal expansion
physica status solidi (b) 250, 450-456 (2013)
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L. Rettig, R. Cortés, H. S. Jeevan, Philipp Gegenwart, T. Wolf, J. Fink und U. Bovensiepen
Electron–phonon coupling in 122Fe pnictides analyzed by femtosecond time-resolved photoemission
New Journal of Physics 15, 083023 (2013)
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S. Zapf, H. S. Jeevan, T. Ivek, F. Pfister, F. Klingert, S. Jiang, D. Wu, Philipp Gegenwart, R. K. Kremer und M. Dressel
EuFe2(As1−xPx)2: reentrant spin glass and superconductivity
Physical Review Letters 110, 237002 (2013)
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H. Singh, T. Chakraborty, D. Das, H. S. Jeevan, Y. Tokiwa, Philipp Gegenwart und C. Mitra
Experimental quantification of entanglement through heat capacity
New Journal of Physics 15, 113001 (2013)
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H. Pfau, R. Daou, S. Lausberg, H. R. Naren, M. Brando, S. Friedemann, S. Wirth, T. Westerkamp, U. Stockert, Philipp Gegenwart, C. Krellner, C. Geibel, G. Zwicknagl und F. Steglich
Interplay between Kondo suppression and lifshitz transitions in YbRh2Si2 at high magnetic fields
Physical Review Letters 110, 256403 (2013)
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H. Gretarsson, J. P. Clancy, Yogesh Singh, Philipp Gegenwart, J. P. Hill, Jungho Kim, M. H. Upton, A. H. Said, D. Casa, T. Gog und Young-June Kim
Magnetic excitation spectrum of Na2IrO3 probed with resonant inelastic x-ray scattering
Physical Review B 87, 220407(R) (2013)
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Manuel Brando, Luis Pedrero, Tanja Westerkamp, Cornelius Krellner, Philipp Gegenwart, Christoph Geibel und Frank Steglich
Magnetization study of the energy scales in YbRh2Si2 under chemical pressure
physica status solidi (b) 250, 485-490 (2013)
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I. I. Mazin, S. Manni, K. Foyevtsova, Harald O. Jeschke, Philipp Gegenwart und Roser Valentí
Origin of the insulating state in honeycomb iridates and rhodates
Physical Review B 88, 035115 (2013)
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Y. Tokiwa, M. Garst, Philipp Gegenwart, S. L. Bud’ko und P. C. Canfield
Quantum bicriticality in the heavy-fermion metamagnet YbAgGe
Physical Review Letters 111, 116401 (2013)
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R. Matysiak, Philipp Gegenwart, A. Ochiai, M. Antkowiak, G. Kamieniarz und F. Steglich
Specific heat of segmented Heisenberg quantum spin chains in (Yb1−xLux)4As3
Physical Review B 88, 224414 (2013)
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Yogesh Singh, Y. Tokiwa, J. Dong und Philipp Gegenwart
Spin liquid close to a quantum critical point in Na4Ir3O8
Physical Review B 88, 220413(R) (2013)
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Shuai Jiang, H. S. Jeevan, Jinkui Dong und Philipp Gegenwart
Thermopower as a sensitive probe of electronic nematicity in iron pnictides
Physical Review Letters 110, 067001 (2013)
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Vitaly A. Gasparov, A. Audouard, L. Drigo, A. I. Rodigin, C. T. Lin, W. P. Liu, M. Zhang, A. F. Wang, X. H. Chen, H. S. Jeevan, J. Maiwald und Philipp Gegenwart
Upper critical magnetic field of KxFe2-ySe2 and Eu0.5K0.5Fe2AS2 single crystals
Physical Review B 87, 094508 (2013)
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Y. Tokiwa, E. D. Bauer und Philipp Gegenwart
Zero-field quantum critical point in CeCoIn5
Physical Review Letters 111, 107003 (2013)
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Diana Geiger, Marc Scheffler, Martin Dressel, Melanie Schneider und Philipp Gegenwart
Broadband microwave study of SrRuO3and CaRuO3 thin films
Journal of Physics: Conference Series 391, 012091 (2012)
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Hans-Albrecht Krug von Nidda, S. Kraus, S. Schaile, E. Dengler, N. Pascher, Mamoun Hemmida, M. J. Eom, J. S. Kim, H. S. Jeevan, Philipp Gegenwart, Joachim Deisenhofer und Alois Loidl
Electron spin resonance in Eu-based iron pnictides
Physical Review B 86, 094411 (2012)
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R. Sarkar, R. Nath, P. Khuntia, H. S. Jeevan, Philipp Gegenwart und M. Baenitz
Magnetism and superconductivity in Eu0.2Sr0.8(Fe0.86Co0.14)2AS2 probed by 75As NMR
Journal of Physics: Condensed Matter 24, 045702 (2012)
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R. Comin, G. Levy, B. Ludbrook, Z.-H. Zhu, C. N. Veenstra, J. A. Rosen, Yogesh Singh, Philipp Gegenwart, D. Stricker, J. N. Hancock, D. van der Marel, I. S. Elfimov und A. Damascelli
Na2IrO3 as a novel relativistic Mott insulator with a 340-meV gap
Physical Review Letters 109, 266406 (2012)
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A. Antal, T. Knoblauch, Y. Singh, Philipp Gegenwart, D. Wu und M. Dressel
Optical properties of the iron-pnictide analog BaMn2As2
Physical Review B 86, 014506 (2012)
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Y. Tokiwa, E. D. Bauer und Philipp Gegenwart
Quasiparticle entropy in the high-field superconducting phase of CeCoIn5
Physical Review Letters 109, 116402 (2012)
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Yogesh Singh, S. Manni, J. Reuther, T. Berlijn, R. Thomale, W. Ku, S. Trebst und Philipp Gegenwart
Relevance of the Heisenberg-Kitaev model for the honeycomb lattice iridates A2IrO3
Physical Review Letters 108, 127203 (2012)
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Jannis Maiwald, H. S. Jeevan und Philipp Gegenwart
Signatures of quantum criticality in hole-doped and chemically pressurized EuFe2AS2 single crystals
Physical Review B 85, 024511 (2012)
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S. K. Choi, R. Coldea, A. N. Kolmogorov, T. Lancaster, I. I. Mazin, S. J. Blundell, P. G. Radaelli, Yogesh Singh, Philipp Gegenwart, K. R. Choi, S.-W. Cheong, P. J. Baker, C. Stock und J. Taylor
Spin waves and revised crystal structure of honeycomb iridate Na2IrO3
Physical Review Letters 108, 127204 (2012)
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L. Rettig, R. Cortés, S. Thirupathaiah, Philipp Gegenwart, H. S. Jeevan, M. Wolf, J. Fink und U. Bovensiepen
Ultrafast momentum-dependent response of electrons in antiferromagnetic EuFe2As2 driven by optical excitation
Physical Review Letters 108, 097002 (2012)
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Y. Tokiwa, S.-H. Hübner, O. Beck, H. S. Jeevan und Philipp Gegenwart
Unique phase diagram with narrow superconducting dome in EuFe2(As1−xPx)2 due to Eu2+ local magnetic moments
Physical Review B 86, 220505(R) (2012)
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S. Thirupathaiah, E. D. L. Rienks, H. S. Jeevan, R. Ovsyannikov, E. Slooten, J. Kaas, E. van Heumen, S. de Jong, H. A. Dürr, K. Siemensmeyer, R. Follath, Philipp Gegenwart, M. S. Golden und J. Fink
Dissimilarities between the electronic structure of chemically doped and chemically pressurized iron pnictides from an angle-resolved photoemission spectroscopy study
Physical Review B 84, 014531 (2011)
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Y. Tokiwa und Philipp Gegenwart
High-resolution alternating-field technique to determine the magnetocaloric effect of metals down to very low temperatures
Review of Scientific Instruments 82, 013905 (2011)
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H. S. Jeevan, Deepa Kasinathan, Helge Rosner und Philipp Gegenwart
Interplay of antiferromagnetism, ferromagnetism, and superconductivity in EuFe2(As1−xPx)2 single crystals
Physical Review B 83, 054511 (2011)
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X. Liu, T. Berlijn, W.-G. Yin, W. Ku, A. Tsvelik, Young-June Kim, H. Gretarsson, Yogesh Singh, Philipp Gegenwart und J. P. Hill
Long-range magnetic ordering in Na2IrO3
Physical Review B 83, 220403(R) (2011)
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Y. Tokiwa, S. Grüheit, H. S. Jeevan, C. Stingl und Philipp Gegenwart
Low-temperature antiferromagnetic ordering in the heavy-fermion metal YbPd
Journal of Physics: Conference Series 273, 012062 (2011)
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M. Schubert, H. S. Jeevan und Philipp Gegenwart
Low-temperature electrical resistivity of slightly Ge-doped YbRh2Si2
Journal of the Physical Society of Japan 80, SA004 (2011)
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D. Wu, G. Chanda, H. S. Jeevan, Philipp Gegenwart und M. Dressel
Optical investigations of chemically pressurized EuFe2(As1−xPx)2: an s-wave superconductor with strong interband interactions
Physical Review B 83, 100503 (2011)
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Y. Tokiwa, Philipp Gegenwart, D. Gnida und D. Kaczorowski
Quantum criticality near the upper critical field of Ce2PdIn8
Physical Review B 84, 140507(R) (2011)
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C. Stingl, R. S. Perry, Y. Maeno und Philipp Gegenwart
Symmetry-breaking lattice distortion in Sr3Ru2O7
Physical Review Letters 107, 026404 (2011)
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S. Zapf, D. Wu, L. Bogani, H. S. Jeevan, Philipp Gegenwart und M. Dressel
Varying Eu2+ magnetic order by chemical pressure in EuFe2(As1−xPx)2
Physical Review B 84, 140503(R) (2011)
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C. Stingl, R. S. Perry, Y. Maeno und Philipp Gegenwart
Anisotropy of the low-temperature magnetostriction of Sr3Ru2O7
physica status solidi (b) 247, 574-576 (2010)
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Yogesh Singh und Philipp Gegenwart
Antiferromagnetic Mott insulating state in single crystals of the honeycomb lattice material Na2IrO3
Physical Review B 82, 064412 (2010)
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Philipp Gegenwart, Y. Tokiwa, J. G. Donath, R. Küchler, C. Bergmann, H. S. Jeevan, E. D. Bauer, J. L. Sarrao, C. Geibel und F. Steglich
Divergence of the Grüneisen parameter and magnetocaloric effect at heavy fermion quantum critical points
Journal of Low Temperature Physics 161, 117-133 (2010)
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S. de Jong, E. van Heumen, S. Thirupathaiah, R. Huisman, F. Massee, J. B. Goedkoop, R. Ovsyannikov, J. Fink, H. A. Dürr, A. Gloskovskii, H. S. Jeevan, Philipp Gegenwart, A. Erb, L. Patthey, M. Shi, R. Follath, A. Varykhalov und M. S. Golden
Droplet-like Fermi surfaces in the anti-ferromagnetic phase of EuFe2As2, an Fe-pnictide superconductor parent compound
Europhysics Letters 89, 27007 (2010)
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J. Custers, Philipp Gegenwart, C. Geibel, F. Steglich, P. Coleman und S. Paschen
Evidence for a non-Fermi-liquid phase in ge-substituted YbRh2Si2
Physical Review Letters 104, 186402 (2010)
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M. Schneider, V. Moshnyaga und Philipp Gegenwart
Ferromagnetic quantum phase transition in Sr1−xCaxRuO3 thin films
physica status solidi (b) 247, 577-579 (2010)
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M. Schneider, V. Moshnyaga und Philipp Gegenwart
Growth of Sr1-xCaxRuO3thin films by metalorganic aerosol deposition
Journal of Physics: Conference Series 200, 012178 (2010)
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S. Friedemann, T. Westerkamp, M. Brando, N. Oeschler, Philipp Gegenwart, C. Krellner, C. Geibel, S. MaQuilon, Z. Fisk, F. Steglich und S. Wirth
Magnetic and electronic quantum criticality in YbRh2Si2
Journal of Low Temperature Physics 161, 67-82 (2010)
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N. Pascher, Joachim Deisenhofer, Hans-Albrecht Krug von Nidda, Mamoun Hemmida, H. S. Jeevan, Philipp Gegenwart und Alois Loidl
Magnetic fluctuations and superconductivity in iron pnictides as probed by electron spin resonance
Physical Review B 82, 054525 (2010)
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Y. Tokiwa, C. Geibel, F. Steglich und Philipp Gegenwart
Magnetization study on the field-induced quantum critical point in YbRh2Si2
Journal of Physics: Conference Series 200, (2010)
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M. Brando, T. Westerkamp, M. Deppe, Philipp Gegenwart, C. Geibel und F. Steglich
Quantum Griffiths phase in CePd1−x Rh x with x ≈ 0.8
Journal of Physics: Conference Series 200, 012016 (2010)
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J.-F. Mercure, A. W. Rost, E. C. T. O’Farrell, S. K. Goh, R. S. Perry, M. L. Sutherland, S. A. Grigera, R. A. Borzi, Philipp Gegenwart, A. S. Gibbs und A. P. Mackenzie
Quantum oscillations near the metamagnetic transition in Sr3Ru2O7
Physical Review B 81, 235103 (2010)
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C. Bergmann, H. S. Jeevan, M. Schubert, C. Geibel und Philipp Gegenwart
Single crystal growth of CeNi2Ge2 using the floating zone technique
physica status solidi (b) 247, 694-696 (2010)
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H. S. Jeevan und Philipp Gegenwart
Superconductivity and magnetism in Eu1−xKxFe2As2
Journal of Physics: Conference Series 200, 012060 (2010)
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F. Steglich, J. Arndt, S. Friedemann, C. Krellner, Y. Tokiwa, T. Westerkamp, M. Brando, Philipp Gegenwart, C. Geibel, S. Wirth und O. Stockert
Superconductivity versus quantum criticality: what can we learn from heavy fermions?
Journal of Physics: Condensed Matter 22, 164202 (2010)
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Franziska Weickert, Manuel Brando, Frank Steglich, Philipp Gegenwart und Markus Garst
Universal signatures of the metamagnetic quantum critical endpoint: application to CeRu2Si2
Physical Review B 81, 134438 (2010)
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S. Friedemann, T. Westerkamp, M. Brando, N. Oeschler, S. Wirth, Philipp Gegenwart, C. Krellner, C. Geibel und F. Steglich
Detaching the antiferromagnetic quantum critical point from the Fermi-surface reconstruction in YbRh2Si2
Nature Physics 5, 465-469 (2009)
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Y. Tokiwa, T. Radu, C. Geibel, F. Steglich und Philipp Gegenwart
Divergence of the magnetic Grüneisen ratio at the field-induced quantum critical point in YbRh2Si2
Physical Review Letters 102, 066401 (2009)
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D. Wu, N. Barišić, N. Drichko, S. Kaiser, A. Faridian, M. Dressel, S. Jiang, Z. Ren, L. J. Li, G. H. Cao, Z. A. Xu, H. S. Jeevan und Philipp Gegenwart
Effects of magnetic ordering on dynamical conductivity: optical investigations of EuFe2As2 single crystals
Physical Review B 79, 155103 (2009)
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C. F. Miclea, M. Nicklas, H. S. Jeevan, D. Kasinathan, Z. Hossain, H. Rosner, Philipp Gegenwart, C. Geibel und F. Steglich
Evidence for a reentrant superconducting state in EuFe2As2 under pressure
Physical Review B 79, 212509 (2009)
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Ludwig Peyker, Christian Gold, Ernst-Wilhelm Scheidt, Wolfgang Scherer, J. G. Donath, Philipp Gegenwart, Franz Mayr, T. Unruh, Volker Eyert, E. Bauer und H. Michor
Evolution of quantum criticality in CeNi9−xCuxGe4
Journal of Physics: Condensed Matter 21, 235604 (2009)
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R. Matysiak, G. Kamieniarz, Philipp Gegenwart und A. Ochiai
Field-dependent specific heat of Yb4As3: agreement between a spin-1/2 model and experiment
Physical Review B 79, 224413 (2009)
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T. Westerkamp, M. Deppe, R. Küchler, M. Brando, C. Geibel, Philipp Gegenwart, A. P. Pikul und F. Steglich
Kondo-cluster-glass state near a ferromagnetic quantum phase transition
Physical Review Letters 102, 206404 (2009)
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V. A. Gasparov, H. S. Jeevan und Philipp Gegenwart
Normal-state electrical resistivity and superconducting magnetic penetration depth in Eu0.5K0.5Fe2As2 polycrystals
JETP Letters 89, 294-297 (2009)
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J. G. Donath, F. Steglich, E. D. Bauer, F. Ronning, J. L. Sarrao und Philipp Gegenwart
Quantum criticality in layered CeRhIn5-xSnx compared with cubic CeIn3-xSnx
Europhysics Letters 87, 57011 (2009)
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J.-F. Mercure, S. K. Goh, E. C. T. O’Farrell, R. S. Perry, M. L. Sutherland, A. W. Rost, S. A. Grigera, R. A. Borzi, Philipp Gegenwart und A. P. Mackenzie
Quantum oscillations in the anomalous phase in Sr3Ru2O7
Physical Review Letters 103, 176401 (2009)
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Yoshi Tokiwa, Philipp Gegenwart, Christoph Geibel und Frank Steglich
Separation of energy scales in undoped YbRh2Si2 under hydrostatic pressure
Journal of the Physical Society of Japan 78, 123708 (2009)
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J. G. Donath, F. Steglich, E. D. Bauer, J. L. Sarrao und Philipp Gegenwart
Dimensional crossover of quantum critical behavior in CeCoIn5
Physical Review Letters 100, 136401 (2008)
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H. S. Jeevan, Z. Hossain, Deepa Kasinathan, H. Rosner, C. Geibel und Philipp Gegenwart
Electrical resistivity and specific heat of single-crystalline EuFe2As2: a magnetic homologue of SrFe2As2
Physical Review B 78, 052502 (2008)
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H. S. Jeevan, Z. Hossain, Deepa Kasinathan, H. Rosner, C. Geibel und Philipp Gegenwart
High-temperature superconductivity in Eu0.5K0.5Fe2As2
Physical Review B 78, 092406 (2008)
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T. Westerkamp, Philipp Gegenwart, C. Krellner, C. Geibel und F. Steglich
Low-temperature magnetic susceptibility of Yb(Rh1-xMx)2Si2 (M = Ir, Co) single crystals
Physica B: Condensed Matter 403, 1236-1238 (2008)
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J. G. Donath, Philipp Gegenwart, M. Nicklas, F. Steglich, L. D. Pham und Z. Fisk
Pressure dependence of the Néel and the superconducting transition temperature of CeCo(In0.9Cd0.1)5 studied by thermal expansion
Physica B: Condensed Matter 403, 839-841 (2008)
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Philipp Gegenwart, Qimiao Si und Frank Steglich
Quantum criticality in heavy-fermion metals
Nature Physics 4, 186-197 (2008)
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Philipp Gegenwart, T. Westerkamp, C. Krellner, M. Brando, Y. Tokiwa, C. Geibel und F. Steglich
Unconventional quantum criticality in YbRh2Si2
Physica B: Condensed Matter 403, 1184-1188 (2008)
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F. Weickert, Philipp Gegenwart, R.S. Perry und Y. Maeno
Alternating-field magnetoresistance measurements on Sr3Ru2O7
Physica C: Superconductivity and its Applications 460-462, 520-521 (2007)
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J. G. Sereni, T. Westerkamp, R. Küchler, N. Caroca-Canales, Philipp Gegenwart und C. Geibel
Ferromagnetic quantum criticality in the alloy CePd1−xRhx
Physical Review B 75, 024432 (2007)
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Teodora Radu, Yoshifumi Tokiwa, Radu Coldea, Philipp Gegenwart, Z. Tylczynski und Frank Steglich
Field induced magnetic phase transition as a magnon Bose Einstein condensation
Science and Technology of Advanced Materials 8, 406-409 (2007)
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R. Matysiak, G. Kamieniarz, Philipp Gegenwart, H. Aoki und A. Ochiai
Field-dependent specific-heat of the pure and diluted 4f electron system Yb4As3
Inorganica Chimica Acta 360, 3955-3958 (2007)
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Philipp Gegenwart, T. Westerkamp, C. Krellner, Y. Tokiwa, S. Paschen, C. Geibel, F. Steglich, E. Abrahams und Q. Si
Multiple energy scales at a quantum critical point
Science 315, 969-971 (2007)
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J.G. Donath, Philipp Gegenwart, F. Steglich, E.D. Bauer und J.L. Sarrao
Pressure effect on antiferromagnetism in CeRhIn5−xSnx studied by thermal expansion
Physica C: Superconductivity and its Applications 460-462, 661-662 (2007)
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R. Küchler, Philipp Gegenwart, C. Geibel und F. Steglich
Systematic study of the Grüneisen ratio near quantum critical points
Science and Technology of Advanced Materials 8, 428-433 (2007)
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Philipp Gegenwart, Y. Tokiwa, T. Westerkamp, F. Weickert, J. Custers, J. Ferstl, C. Krellner, C. Geibel, P. Kerschl, K.-H. Müller und F. Steglich
High-field phase diagram of the heavy-fermion metal YbRh2Si2
New Journal of Physics 8, 171 (2006)
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Franziska Weickert, Philipp Gegenwart, Hyekyung Won, David Parker und Kazumi Maki
In-plane angular dependence of the upper critical field in CeCoIn5
Physical Review B 74, 134511 (2006)
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F. Weickert, Philipp Gegenwart, J. Ferstl, C. Geibel und F. Steglich
Low-temperature electrical resistivity of Yb1-xLaxRh2Si2
Physica B: Condensed Matter 378-380, 72-73 (2006)
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Y. Tokiwa, Philipp Gegenwart, Z. Hossain, J. Ferstl, G. Sparn, C. Geibel und F. Steglich
Low-temperature high-field magnetization of YbRh2Si2 and YbIr2Si2 under hydrostatic pressure
Physica B: Condensed Matter 378-380, 746-747 (2006)
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Philipp Gegenwart, F. Weickert, R. S. Perry und Y. Maeno
Low-temperature magnetostriction of Sr3Ru2O7
Physica B: Condensed Matter 378-380, 117-118 (2006)
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Z. Hossain, C. Geibel, T. Radu, Y. Tokiwa, F. Weickert, C. Krellner, H. Jeevan, Philipp Gegenwart und F. Steglich
Low-temperature properties of the heavy fermion system YbIr2Si2
Physica B: Condensed Matter 378-380, 74-75 (2006)
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Y. Tokiwa, A. Pikul, Philipp Gegenwart, F. Steglich, S. L. Bud’ko und P. C. Canfield
Low-temperature thermodynamic properties of the heavy-fermion compound YbAgGe close to the field-induced quantum critical point
Physical Review B 73, 094435 (2006)
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Philipp Gegenwart, Y. Tokiwa, J. Custers, C. Geibel und F. Steglich
Magnetic properties close to the quantum critical point in YbRh2Si2
Journal of the Physical Society of Japan 75, 155-159 (2006)
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Philipp Gegenwart, F. Weickert, M. Garst, R. S. Perry und Y. Maeno
Metamagnetic quantum criticality in Sr3Ru2O7 studied by thermal expansion
Physical Review Letters 96, 136402 (2006)
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A. P. Pikul, N. Caroca-Canales, M. Deppe, Philipp Gegenwart, J. G. Sereni, C. Geibel und F. Steglich
Non-Fermi-liquid behaviour close to the disappearance of ferromagnetism in CePd1−xRhx
Journal of Physics: Condensed Matter 18, L535-L542 (2006)
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J. G. Donath, Philipp Gegenwart, R. Küchler, N. Oeschler, F. Steglich, E. D. Bauer und J. L. Sarrao
Pressure effect on superconductivity in studied by thermal expansion
Physica B: Condensed Matter 378-380, 98-99 (2006)
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R. Küchler, Philipp Gegenwart, J. Custers, O. Stockert, N. Caroca-Canales, C. Geibel, J. G. Sereni und F. Steglich
Quantum criticality in the cubic heavy-fermion system CeIn3−xSnx
Physical Review Letters 96, 256403 (2006)
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R. Küchler, Philipp Gegenwart, F. Weickert, N. Oeschler, T. Cichorek, M. Nicklas, N. Carocca-Canales, C. Geibel und F. Steglich
Thermal expansion and Grüneisen ratio near quantum critical points
Physica B: Condensed Matter 378-380, 36-39 (2006)
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Niels Oeschler, Micha Deppe, Philipp Gegenwart, Christoph Geibel und Frank Steglich
Thermal expansion of CeCu2(Si1−xGex)2
AIP Conference Proceedings 850, 1165-1 (2006)
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Philipp Gegenwart, J. Custers, Y. Tokiwa, C. Geibel und F. Steglich
Ferromagnetic quantum critical fluctuations in YbRh2(Si0.95Ge0.05)2
Physical Review Letters 94, 076402 (2005)
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G. Kamieniarz, R. Matysiak, Philipp Gegenwart, H. Aoki und A. Ochiai
Field-dependent specific heat and magnetization for the S=12 antiferromagnetic chain Yb4As3: simulation and experiments
Journal of Magnetism and Magnetic Materials 290-291, 353-356 (2005)
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Y. Tokiwa, Philipp Gegenwart, T. Radu, J. Ferstl, G. Sparn, C. Geibel und F. Steglich
Field-induced suppression of the heavy-fermion state in YbRh2Si2
Physical Review Letters 94, 226402 (2005)
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N. Oeschler, M. Deppe, E. Lengyel, R. Borth, Philipp Gegenwart, G. Sparn, C. Geibel und F. Steglich
Magnetic phase diagram of CeCu2(Si1−xGex)2 measured with low-temperature thermal expansion
Physical Review B 71, 094409 (2005)
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Y. Tokiwa, Philipp Gegenwart, G. Sparn, J. Ferstl, C. Geibel und F. Steglich
Pressure dependence of the low-temperature magnetization of YbRh2Si2
Physica B: Condensed Matter 359-361, 29-31 (2005)
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Philipp Gegenwart, Y. Tokiwa, K. Neumaier, C. Geibel und F. Steglich
Scaling of the magnetic entropy and magnetization in YbRh2(Si0.95Ge0.05)2
Physica B: Condensed Matter 359-361, 23-25 (2005)
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F. Weickert, Philipp Gegenwart, J. A. Mydosh, F. Steglich, C. Kanadani, Y. Tabata, T. Taniguchi und S. Kawarazaki
Search for a quantum critical end-point in CeRu2(Si1-xGex)2
Physica B: Condensed Matter 359-361, 68-70 (2005)
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Julia Ferstl, Christoph Geibel, Franziska Weickert, Philipp Gegenwart, Teodora Radu, Thomas Lühmann und Frank Steglich
Tuning YbRh2Si2 to a non-magnetic state by La-doping
Physica B: Condensed Matter 359-361, 26-28 (2005)
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T. Cichorek, A. Sanchez, Philipp Gegenwart, F. Weickert, A. Wojakowski, Z. Henkie, G. Auffermann, S. Paschen, R. Kniep und F. Steglich
Two-channel Kondo effect in glasslike ThAsSe
Physical Review Letters 94, 236603 (2005)
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Z. Hossain, C. Geibel, F. Weickert, T. Radu, Y. Tokiwa, H. Jeevan, Philipp Gegenwart und F. Steglich
Yb-based heavy-fermion metal situated close to a quantum critical point
Physical Review B 72, 094411 (2005)
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R. Matysiak, G. Kamieniarz, Philipp Gegenwart und F. Steglich
Antiferromagnetic interactions in the semimetallic Yb4As3: field-dependent specific heat and magnetization data
Journal of Magnetism and Magnetic Materials 272-276, 282-283 (2004)
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N. Oeschler, Philipp Gegenwart, F. Weickert, I. Zerec, P. Thalmeier, F. Steglich, E. D. Bauer, N. A. Frederick und M. B. Maple
B−T phase diagram of PrOs4Sb12 studied by low-temperature thermal expansion and magnetostriction
Physical Review B 69, 235108 (2004)
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S. A. Grigera, Philipp Gegenwart, R. A. Borzi, F. Weickert, A. J. Schofield, R. S. Perry, T. Tayama, T. Sakakibara, Y. Maeno, A. G. Green und A. P. Mackenzie
Disorder-sensitive phase formation linked to metamagnetic quantum criticality
Science 306, 1154-1157 (2004)
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R. Küchler, Philipp Gegenwart, Karsten Heuser, Ernst-Wilhelm Scheidt, Gregory R. Stewart und Frank Steglich
Grüneisen Ratio divergence at the quantum critical point in CeCu6-xAgx
Physical Review Letters 93, 096402 (2004)
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S. Paschen, T. Lühmann, S. Wirth, Philipp Gegenwart, O. Trovarelli, C. Geibel, F. Steglich, P. Coleman und Q. Si
Hall-effect evolution across a heavy-fermion quantum critical point
Nature 432, 881-885 (2004)
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R. Küchler, F. Weickert, Philipp Gegenwart, N. Oeschler, J. Ferstl, C. Geibel und F. Steglich
Low-temperature thermal expansion and magnetostriction of YbRh2(Si1−xGex)2 (x=0 and 0.05)
Journal of Magnetism and Magnetic Materials 272-276, 229-230 (2004)
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Philipp Gegenwart, C. Langhammer, R. Helfrich, N. Oeschler, M. Lang, J. S. Kim, G. R. Stewart und F. Steglich
Non-Fermi liquid normal state of the heavy-fermion superconductor UBe13
Physica C: Superconductivity 408-410, 157-160 (2004)
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Y. Tokiwa, Philipp Gegenwart, F. Weickert, R. Küchler, J. Custers, J. Ferstl, C. Geibel und F. Steglich
Suppression of the Kondo state in YbRh2Si2 by large magnetic fields
Journal of Magnetism and Magnetic Materials 272-276, E87-E88 (2004)
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T. Cichorek, Z. Henkie, J. Custers, Philipp Gegenwart und F. Steglich
TLS Kondo effect in structurally disordered ThAsSe
Journal of Magnetism and Magnetic Materials 272-276, 66-67 (2004)
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Hyekyung Won, Kazumi Maki, Stephan Haas, Niels Oeschler, Franziska Weickert und Philipp Gegenwart
Upper critical field and Fulde-Ferrell-Larkin-Ovchinnikov state in CeCoIn5
Physical Review B 69, 180504 (2004)
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R. Küchler, N. Oeschler, Philipp Gegenwart, T. Cichorek, K. Neumaier, O. Tegus, C. Geibel, J. A. Mydosh, F. Steglich, L. Zhu und Q. Si
Divergence of the Grüneisen ratio at quantum critical points in heavy fermion metals
Physical Review Letters 91, 066405 (2003)
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Philipp Gegenwart, J. Custers, T. Tayama, K. Tenya, C. Geibel, O. Trovarelli, F. Steglich und K. Neumair
Divergence of the heavy quasiparticle mass at the antiferromagnetic quantum critical point in YbRh2Si2
Acta Physica Polonica B 34, 323-334 (2003)
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K. Tenya, N. Oeschler, Philipp Gegenwart, F. Steglich, N. A. Frederick, E. D. Bauer und M. B. Maple
Low temperature magnetization of the skutterudite superconductor PrOs4Sb12
Acta Physica Polonica B 34, 995-998 (2003)
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T. Cichorek, C. Geibel, N. Carocca-Canales, T. Lühmann, Philipp Gegenwart und F. Steglich
Low-temperature specific heat of slightly off-stoichiometric CeNi2Ge2
Acta Physica Polonica B 34, 371-374 (2003)
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Philipp Gegenwart, J. Custers, T. Cichorek, N. Caroca-Canales, O. Stockert, C. Geibel, F. Steglich, P. Pedrazzini und J. G. Sereni
Non-Fermi liquid effects close to a QCP in CeIn3-xSnx
Acta Physica Polonica B 34, 379-382 (2003)
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D. Kaczorowski, A. Leithe-Jasper, T. Cichorek, K. Tenya, J. Custers, Philipp Gegenwart und Yu Grin
Possible heavy-fermion behavior in a Heusler-type compound YbPd2Sb
Acta Physica Polonica B 34, 1253-1256 (2003)
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J. Custers, Philipp Gegenwart, K. Neumaier, H. Wilhelm, N. Oeschler, K. Ishida, Y. Kitaoka, C. Geibel und F. Steglich
Quantum criticality in YbRh2Si2
Journal of Physics: Condensed Matter 15, S2047-S2053 (2003)
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F. Steglich, Philipp Gegenwart, K. Neumaier, N. K. Sato, N. Aso, J. Custers, H. Wilhelm, C. Geibel und O. Trovarelli
Recent trends in heavy-fermion physics
Physica B: Condensed Matter 329-333, 441-445 (2003)
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Tomasz Cichorek, Hidekazu Aoki, Jeroen Custers, Philipp Gegenwart, Frank Steglich, Zygmunt Henkie, Eric D. Bauer und M. Brian Maple
ThAsSe diamagnet: evidence for a Kondo effect derived from structural two-level systems
Physical Review B 68, 144411 (2003)
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J. Custers, Philipp Gegenwart, H. Wilhelm, K. Neumaier, Y. Tokiwa, O. Trovarelli, C. Geibel, F. Steglich, C. Pépin und P. Coleman
The break-up of heavy electrons at a quantum critical point
Nature 424, 524-527 (2003)
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R. Matysiak, G. Kamieniarz, Philipp Gegenwart, H. Aoki, A. Ochiai und F. Steglich
The semimetallic S=1/2 antiferromagnetic chain Yb4As3: quantum transfer-matrix simulations and experimental field-dependent specific-heat data
physica status solidi (b) 237, 549-552 (2003)
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N. Oeschler, Philipp Gegenwart, F. Steglich, N. A. Frederick, E. D. Bauer und M. B. Maple
Thermal expansion of the skutterudite superconductor PrOs4Sb12
Acta Physica Polonica B 34, 959-962 (2003)
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Philipp Gegenwart, J. Custers, T. Tayama, K. Tenya, C. Geibel, G. Sparn, N. Harrison, P. Kerschl, D. Eckert, K.-H. Müller und F. Steglich
Tuning heavy fermion systems into quantum criticality by magnetic field
Journal of Low Temperature Physics 133, 3-15 (2003)
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N. Oeschler, Philipp Gegenwart, M. Lang, R. Movshovich, J.  L. Sarrao, J.  D. Thompson und F. Steglich
Uniaxial pressure effects on CeIrIn5 and CeCoIn5 studied by low-temperature thermal expansion
Physical Review Letters 91, 076402 (2003)
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Burkhard Schmidt, Hidekazu Aoki, Tomasz Cichorek, Philipp Gegenwart, Akira Ochiai und Frank Steglich
Charge ordering and one dimensional magnetism in Yb4As3
Journal of the Physical Society of Japan 71, 64-69 (2002)
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O. Trovarelli, J. Custers, Philipp Gegenwart, C. Geibel, P. Hinze, S. Mederle, G. Sparn und F. Steglich
Effect of Ge-doping and pressure in the vicinity of the QCP of YbRh2Si2
Physica B: Condensed Matter 312-313, 401-402 (2002)
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A. Bianchi, R. Movshovich, N. Oeschler, Philipp Gegenwart, F. Steglich, J. D. Thompson, P. G. Pagliuso und J. L. Sarrao
First-order superconducting phase transition in CeCoIn5
Physical Review Letters 89, 137002 (2002)
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G. Fuchs, K.-H. Müller, J. Freudenberger, K. Nenkov, S.-L. Drechsler, S. V. Shulga, D. Lipp, A. Gladun, T. Cichorek und Philipp Gegenwart
Influence of disorder on superconductivity in non-magnetic rare-earth nickel borocarbides
Pramana 58, 791-797 (2002)
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Hidekazu Aoki, Tomasz Cichorek, Philipp Gegenwart, Jeroen Custers, Michael Lang, Akira Ochiai und Frank Steglich
Influence of interchain-coupling effects on the low-T properties of the one-dimensional S=1/2 Heisenberg antiferromagnet Yb4As3
Physica B: Condensed Matter 312-313, 367-369 (2002)
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T. Cichorek, Z. Henkie, A. Wojakowski, A. Pietraszko, Philipp Gegenwart, M. Lang und F. Steglich
Low-temperature specific heat for off- and near-stoichiometric UAsSe
Solid State Communications 121, 647-651 (2002)
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T. Cichorek, H. Aoki, Philipp Gegenwart, M. Lang, A. Ochiai und F. Steglich
Low-temperature specific heat of non-charge ordered Yb4(As0.36Sb0.64)3 and (Yb0.87Lu0.13)4As3
Physica B: Condensed Matter 312-313, 370-372 (2002)
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Philipp Gegenwart, J. Custers, C. Geibel, K. Neumaier, T. Tayama, K. Tenya, O. Trovarelli und F. Steglich
Magnetic-field induced quantum critical point in YbRh2Si2
Physical Review Letters 89, 056402 (2002)
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Philipp Gegenwart, H. Aoki, T. Cichorek, J. Custers, M. Jaime, A. Ochiai und F. Steglich
Magnetotransport of the low-carrier density one-dimensional S=1/2 antiferromagnet Yb4As3
Pramana 58, 715-723 (2002)
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D. Lipp, M. Schneider, A. Gladun, S.-L. Drechsler, J. Freudenberger, G. Fuchs, K. Nenkov, K.-H. Müller, T. Cichorek und Philipp Gegenwart
Specific heat and disorder in the mixed state of non-magnetic borocarbides
Europhysics Letters (EPL) 59, 633-633 (2002)
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Erratum published at: https://iopscience.iop.org/article/10.1209/epl/i2002-00106-9

M. Kohgi, K. Iwasa, J.-M. Mignot, B. Fåk, A. Hiess, Philipp Gegenwart, M. Lang, A. Ochiai, H. Aoki und T. Suzuki
Spin excitations of the one-dimensional S=1/2 Heisenberg antiferromagnet Yb4As3 under magnetic field
Physica B: Condensed Matter 312-313, 359-361 (2002)
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Philipp Gegenwart, H. Aoki, T. Cichorek, J. Custers, N. Harrison, M. Jaime, M. Lang, A. Ochiai und F. Steglich
Thermodynamic and transport properties of the one-dimensional S=1/2 antiferromagnet Yb4As3
Physica B: Condensed Matter 312-313, 315-320 (2002)
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M. Lang, S. Zherlitsyn, B. Wolf, H. Aoki, T. Cichorek, Philipp Gegenwart, B. Schmidt, F. Steglich und A. Ochiai
Thermodynamic studies of the field-induced gap in the quasi-one-dimensional S=1/2 antiferromagnet Yb4as3
International Journal of Modern Physics B 16, 3018-3023 (2002)
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T. Cichorek, Z. Henkie, Philipp Gegenwart, M. Lang, A. Wojakowski, M. Dischner und F. Steglich
A non-magnetic Kondo effect in UAsSe ferromagnet?
Journal of Magnetism and Magnetic Materials 226-230, 189-190 (2001)
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Z. Hossain, T. Takabatake, C. Geibel, Philipp Gegenwart, I. Oguro und F. Steglich
Evidence for low-dimensional magnetic behaviour in CePt5Ge3
Journal of Physics: Condensed Matter 13, 4535-4542 (2001)
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B. Schmidt, H. Aoki, T. Cichorek, J. Custers, Philipp Gegenwart, M. Kohgi, M. Lang, C. Langhammer, A. Ochiai, S. Paschen, F. Steglich, T. Suzuki, P. Thalmeier, B. Wand und A. Yaresko
Low-energy excitations of the semimetallic one-dimensional S=1/2 antiferromagnet Yb4As3
Physica B: Condensed Matter 300, 121-138 (2001)
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Philipp Gegenwart, J. Custers, C. Geibel, F. Steglich, T. Tayama, O. Trovarelli und N. Harrison
Low-temperature magnetic and transport properties of the clean NFL system YbRh2(Si1−xGex)2
Acta Physica Polonica B 32, 3211-3217 (2001)
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Philipp Gegenwart, T. Cichorek, J. Custers, M. Lang, H. Aoki, A. Ochiai und F. Steglich
Low-temperature resistivity and susceptibility of the low-carrier density, one-dimensional S=12 antiferromagnet Yb4As3
Journal of Magnetism and Magnetic Materials 226-230, 630-632 (2001)
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Masahumi Kohgi, Kazuaki Iwasa, Jean-Michel Mignot, Björn Fåk, Philipp Gegenwart, Michael Lang, Akira Ochiai, Hidekazu Aoki und Takashi Suzuki
Staggered field effect on the one-dimensional S=1/2 antiferromagnet Yb4As3
Physical Review Letters 86, 2439-2442 (2001)
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F. Steglich, Philipp Gegenwart, C. Geibel, P. Hinze, M. Lang, C. Langhammer, G. Sparn, T. Tayama, O. Trovarelli, N. Sato, T. Dahm und G. Varelogiannis
Superconductivity and magnetism in heavy-fermions
in: More is different: fifty years of condensed matter physics, hrsg. von Nai-Phuan Ong und Ravin Bhatt, 191-210 (Princeton University Press, 2001)
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M. Lang, M. Köppen, Philipp Gegenwart, T. Cichorek, P. Thalmeier, F. Steglich und A. Ochiai
Evidence for magnons and solitons in the one-dimensional antiferromagnet Yb4As3
Physica B: Condensed Matter 281-282, 458-459 (2000)
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Philipp Gegenwart, P. Hinze, C. Geibel, M. Lang und F. Steglich
Incipient superconductivity and NFL behavior in off-stoichiometric Ce1+xNi2+yGe2+z polycrystals
Physica B: Condensed Matter 281-282, 5-6 (2000)
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F. Steglich, M. Köppen, Philipp Gegenwart, T. Cichorek, B. Wand, M. Lang, P. Thalmeier, B. Schmidt, H. Aoki und A. Ochiai
Magnon and soliton excitations in the carrier-poor, one-dimensional S=1/2 antiferromagnet Yb4As3
Acta Physica Polonica A 97, 91-100 (2000)
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O. Trovarelli, C. Geibel, C. Langhammer, S. Mederle, Philipp Gegenwart, F. M. Grosche, M. Lang, G. Sparn und F. Steglich
Non-Fermi-liquid effects at ambient pressure in the stoichiometric heavy-fermion compound YbRh2Si2
Physica B: Condensed Matter 281-282, 372-373 (2000)
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F. Steglich, Philipp Gegenwart, C. Geibel, P. Hinze, M. Lang, C. Langhammer, G. Sparn und O. Trovarelli
Non-Fermi-liquid effects in stoichiometric 4f-electron metals at ambient pressure
Physica B: Condensed Matter 280, 349-353 (2000)
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Philipp Gegenwart, F. Steglich, P. Hinze, C. Langhammer, C. Geibel, Marieluise Lang und G. Sparn
On the relationship of magnetism and superconductivity in materials containing partially filled f shells
Journal of the Physical Society of Japan: Frontiers in Magnetism 69, 71-76 (2000)
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S.-L. Drechsler, H. Rosner, S. V. Shulga, H. Eschrig, J. Freudenberger, G. Fuchs, K. Nenkov, K.-H. Müller, D. Lipp, A. Gladun, A. Kreyssig, K. Koepernik, Philipp Gegenwart und T. Cichorek
Superconductivity in clean and disordered nonmagnetic borocarbides
Physica C: Superconductivity 341-348, 749-750 (2000)
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F. Steglich, N. Sato, T. Tayama, T. Lühmann, C. Langhammer, Philipp Gegenwart, P. Hinze, C. Geibel, M. Lang, G. Sparn und W. Assmus
Unconventional normal-state properties and superconductivity in heavy-fermion metals
Physica C: Superconductivity 341-348, 691-694 (2000)
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O. Trovarelli, C. Geibel, S. Mederle, C. Langhammer, F. M. Grosche, Philipp Gegenwart, M. Lang, G. Sparn und F. Steglich
YbRh2Si2: pronounced non-Fermi-liquid effects above a low-lying magnetic phase transition
Physical Review Letters 85, 626-629 (2000)
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Philipp Gegenwart, M. Lang, A. Link, G. Sparn, C. Geibel, F. Steglich und W. Assmus
Evidence for an antiferromagnetic quantum critical point near stoichiometric CeCu2Si2
Physica B: Condensed Matter 259-261, 403-404 (1999)
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M. Lang, Philipp Gegenwart, R. Helfrich, M. Köppen, F. Kromer, C. Langhammer, C. Geibel, F. Steglich, J. S. Kim und G. R. Stewart
Non-Fermi-liquid properties and exotic superconductivity in CeCu2Si2 and (UTh)Be13
in: Electron Correlations and Materials Properties, 153-168 (Springer US: Boston, MA, 1999)
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Philipp Gegenwart, F. Kromer, M. Lang, G. Sparn, C. Geibel und F. Steglich
Non-fermi-liquid effects at ambient pressure in a stoichiometric heavy-fermion compound with very low disorder: CeNi2Ge2
Physical Review Letters 82, 1293-1296 (1999)
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Philipp Gegenwart, C. Langhammer, C. Geibel, R. Helfrich, M. Lang, G. Sparn, F. Steglich, R. Horn, L. Donnevert, A. Link und W. Assmus
Breakup of heavy fermions on the brink of "phase A" in CeCu2Si2
Physical Review Letters 81, 1501-1504 (1998)
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F. Steglich, C. Geibel, R. Helfrich, F. Kromer, M. Lang, G. Sparn, Philipp Gegenwart, L. Donnevert, C. Langhammer, A. Link, J. S. Kim und G. R. Stewart
CeCu2Si2 and UBe13: new questions - old answers?
Journal of Physics and Chemistry of Solids 59, 2190-2195 (1998)
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F. Steglich, P. Hellmann, S. Thomas, Philipp Gegenwart, A. Link, R. Helfrich, G. Sparn, M. Lang, C. Geibel und W. Assmus
"Non-Fermi-liquid" phenomena in heavy-fermion CeCu2Si2 and CeNi2Ge2
Physica B: Condensed Matter 237-238, 192-196 (1997)
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O. Trovarelli, M. Weiden, R. Müller-Reisener, M. Gómez-Berisso, Philipp Gegenwart, M. Deppe, C. Geibel, J. G. Sereni und F. Steglich
Evolution of magnetism and superconductivity in CeCu2(Si1−xGex)2
Physical Review B 56, 678-685 (1997)
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M. Tachiki, S. Takahashi, Philipp Gegenwart, M. Weiden, M. Lang, C. Geibel, F. Steglich, R. Modler, C. Paulsen und Y. Ōnuki
Generalized Fulde-Ferrell-Larkin-Ovchinnikov state in heavy-fermion and intermediate-valence systems
Zeitschrift für Physik B Condensed Matter 100, 369-380 (1997)
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Philipp Gegenwart, M. Lohmann, M. Lang, R. Helfrich, C. Langhammer, M. Köppen, C. Geibel, F. Steglich und W. Assmus
Non-Fermi-liquid behavior in CeCu2Si2 at the disappearance of the presumably magnetically ordered 'A-phase'
Physica B: Condensed Matter 230-232, 572-575 (1997)
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Philipp Gegenwart, M. Deppe, M. Köppen, F. Kromer, M. Lang, R. Modler, M. Weiden, C. Geibel, F. Steglich, T. Fukase und N. Toyota
Anomalous peak effect in heavy-fermion, intermediate-valence and A15 superconductors: evidence for a Fulde-Ferrell-Larkin-Ovchinnikov state?
Annalen der Physik 508, 307-319 (1996)
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Y. Ōnuki, M. Hedo, Y. Inada, R. Settai, H. Sugawara, Y. Aoki, H. Sato, M. Deppe, Philipp Gegenwart, C. Geibeld, M. Lang, T. Lühmann, R. Modler, M. Weiden, F. Steglich, C. Paulsen, J. L. Tholence, N. Sato, T. Komatsubara, M. Tachiki und S. Takahashi
Anomalous pinning in superconductors with strong Pauli paramagnetism
Physica B: Condensed Matter 223-224, 28-32 (1996)
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F. Steglich, Philipp Gegenwart, R. Helfrich, C. Langhammer, P. Hellmann, L. Donnevert, C. Geibel, M. Lang, G. Sparn, W. Assmus, G. R. Stewart und A. Ochiai
Are heavy-fermion metals Fermi liquids?
Journal of Physics B: Condensed Matter 103, 235-242 (1996)
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F. Steglich, R. Modler, Philipp Gegenwart, M. Deppe, M. Weiden, M. Lang, C. Geibel, T. Lühmann, C. Paulsen, J.L. Tholence, Y. Ōnuki, M. Tachiki und S. Takahashi
Experimental evidence for a generalized FFLO state in clean type-II superconductors with short coherence length and enhanced Pauli susceptibility
Physica C: Superconductivity 263, 498-504 (1996)
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R. Modler, Philipp Gegenwart, M. Lang, M. Deppe, M. Weiden, T. Lühmann, C. Geibel, F. Steglich, C. Paulsen, J. L. Tholence, N. Sato, T. Komatsubara, Y. Ōnuki, M. Tachiki und S. Takahashi
First-order transition between weak and strong pinning in clean superconductors with enhanced spin susceptibility
Physical Review Letters 76, 1292-1295 (1996)
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M. Huth, S. Reber, C. Heske, P. Schicketanz, J. Hessert, Philipp Gegenwart und H. Adrian
Growth characteristics of sputter-deposited UPt3 thin films
Journal of Physics: Condensed Matter 8, 8777-8786 (1996)
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Frank Steglich, Philipp Gegenwart, Christoph Geibel, R. Helfrich, P. Hellmann, M. Lang, A. Link, R. Modler, G. Sparn, Norbert Büttgen und Alois Loidl
New observations concerning magnetism and superconductivity in heavy-fermion metals
Physica B 223-224, 1-8 (1996)
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F. Steglich, B. Buschinger, Philipp Gegenwart, M. Lohmann, R. Helfrich, C. Langhammer, P. Hellmann, L. Donnevert, S. Thomas, A. Link, C. Geibel, M. Lang, G. Sparn und W. Assmus
Quantum critical phenomena in undoped heavy-fermion metals
Journal of Physics: Condensed Matter 8, 9909-9921 (1996)
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Michael Huth, Jan Hessert, Stefan Reber, Martin Jourdan, Philipp Gegenwart und Hermann Adrian
Strain induced renormalization of transport properties in UPt3 thin films
Czechoslovak Journal of Physics 46, 791-792 (1996)
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F. Thomas, B. Wand, T. Lühmann, Philipp Gegenwart, G. R. Stewart, F. Steglich, J. P. Brison, A. Buzdin, L. Glémot und J. Flouquet
Strong coupling effects on the upper critical field of the heavy-fermion superconductor UBe13
Journal of Low Temperature Physics 102, 117-132 (1996)
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S. Takahashi, M. Tachiki, R. Modler, Philipp Gegenwart, M. Lang und F. Steglich
Theory of a generalized Fulde-Ferrell-Larkin-Ovchinnikov state in heavy fermion and intermediate-valence superconductors
Physica C: Superconductivity 263, 30-34 (1996)
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Frank Steglich, Christoph Geibel, Robert Modler, Michael Lang, Peter Hellmann und Philipp Gegenwart
Classification of strongly correlated f-electron systems
Journal of Low Temperature Physics 99, 267-281 (1995)
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T. Lühmann, Philipp Gegenwart, P. H. P. Reinders, C. Geibel, F. Steglich, C. Paulsen und J. L. Tholence
Anomalous pinning near Hc2 in the heavy fermion superconductor UPd2Al3 studied by magnetic measurements
Physica C: Superconductivity 235-240, 2433-2434 (1994)
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C. Geibel, C. Schank, F. Jährling, B. Buschinger, A. Grauel, T. Lühmann, Philipp Gegenwart, R. Helfrich, P.H.P. Reinders und F. Steglich
Doping effects on UPd2Al3
Physica B: Condensed Matter 199-200, 128-131 (1994)
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C. Geibel, B. Buschinger, C. Schank, T. Lühmann, Philipp Gegenwart, M. Weiden und F. Steglich
Impurities in a superconductor with a highly anisotropic gap: universal correlation between the residual resistivity and Tc in doped UPd2Al3
Physica C: Superconductivity 235-240, 2435-2436 (1994)
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