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Unconventional Hysteretic Transition in a Charge Density Wave.
Lv, B Q; Zong, Alfred; Wu, D; Rozhkov, A V; Fine, Boris V; Chen, Su-Di; Hashimoto, Makoto; Lu, Dong-Hui; Li, M; Huang, Y-B; Ruff, Jacob P C; Walko, Donald A; Chen, Z H; Hwang, Inhui; Su, Yifan; Shen, Xiaozhe; Wang, Xirui; Han, Fei; Po, Hoi Chun; Wang, Yao; Jarillo-Herrero, Pablo; Wang, Xijie; Zhou, Hua; Sun, Cheng-Jun; Wen, Haidan; Shen, Zhi-Xun; Wang, N L; Gedik, Nuh.
Afiliação
  • Lv BQ; Massachusetts Institute of Technology, Department of Physics, Cambridge, Massachusetts 02139, USA.
  • Zong A; Massachusetts Institute of Technology, Department of Physics, Cambridge, Massachusetts 02139, USA.
  • Wu D; University of California at Berkeley, Department of Chemistry, Berkeley, California 94720, USA.
  • Rozhkov AV; International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China.
  • Fine BV; Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China.
  • Chen SD; Institute for Theoretical and Applied Electrodynamics, Russian Academy of Sciences, Moscow 125412, Russia.
  • Hashimoto M; Laboratory for the Physics of Complex Quantum Systems, Moscow Institute of Physics and Technology, Institutsky pereulok 9, Dolgoprudny 141701, Russia.
  • Lu DH; Institute for Theoretical Physics, University of Leipzig, Brüderstrasse 16, 04103 Leipzig, Germany.
  • Li M; Department of Applied Physics, Stanford University, Stanford, California 94305, USA.
  • Huang YB; Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory and Stanford University, Menlo Park, California 94025, USA.
  • Ruff JPC; Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
  • Walko DA; Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
  • Chen ZH; Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China.
  • Hwang I; Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China.
  • Su Y; CHESS, Cornell University, Ithaca, New York 14853, USA.
  • Shen X; Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, USA.
  • Wang X; Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China.
  • Han F; Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, USA.
  • Po HC; Massachusetts Institute of Technology, Department of Physics, Cambridge, Massachusetts 02139, USA.
  • Wang Y; SLAC National Accelerator Laboratory, Menlo Park, California, USA.
  • Jarillo-Herrero P; Massachusetts Institute of Technology, Department of Physics, Cambridge, Massachusetts 02139, USA.
  • Wang X; Massachusetts Institute of Technology, Department of Nuclear Science and Engineering, Cambridge, Massachusetts 02139, USA.
  • Zhou H; Massachusetts Institute of Technology, Department of Physics, Cambridge, Massachusetts 02139, USA.
  • Sun CJ; Department of Physics, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.
  • Wen H; Department of Physics and Astronomy, Clemson University, Clemson, South Carolina 29631, USA.
  • Shen ZX; Massachusetts Institute of Technology, Department of Physics, Cambridge, Massachusetts 02139, USA.
  • Wang NL; SLAC National Accelerator Laboratory, Menlo Park, California, USA.
  • Gedik N; Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, USA.
Phys Rev Lett ; 128(3): 036401, 2022 Jan 21.
Article em En | MEDLINE | ID: mdl-35119886
Hysteresis underlies a large number of phase transitions in solids, giving rise to exotic metastable states that are otherwise inaccessible. Here, we report an unconventional hysteretic transition in a quasi-2D material, EuTe_{4}. By combining transport, photoemission, diffraction, and x-ray absorption measurements, we observe that the hysteresis loop has a temperature width of more than 400 K, setting a record among crystalline solids. The transition has an origin distinct from known mechanisms, lying entirely within the incommensurate charge density wave (CDW) phase of EuTe_{4} with no change in the CDW modulation periodicity. We interpret the hysteresis as an unusual switching of the relative CDW phases in different layers, a phenomenon unique to quasi-2D compounds that is not present in either purely 2D or strongly coupled 3D systems. Our findings challenge the established theories on metastable states in density wave systems, pushing the boundary of understanding hysteretic transitions in a broken-symmetry state.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2022 Tipo de documento: Article
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2022 Tipo de documento: Article