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Discovery of conjoined charge density waves in the kagome superconductor CsV3Sb5.
Li, Haoxiang; Fabbris, G; Said, A H; Sun, J P; Jiang, Yu-Xiao; Yin, J-X; Pai, Yun-Yi; Yoon, Sangmoon; Lupini, Andrew R; Nelson, C S; Yin, Q W; Gong, C S; Tu, Z J; Lei, H C; Cheng, J-G; Hasan, M Z; Wang, Ziqiang; Yan, Binghai; Thomale, R; Lee, H N; Miao, H.
Afiliação
  • Li H; Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA. haoxiangli@ust.hk.
  • Fabbris G; Advanced Materials Thrust, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou, Guangdong, 511453, China. haoxiangli@ust.hk.
  • Said AH; Advanced Photon Source, Argonne National Laboratory, Argonne, IL, 60439, USA.
  • Sun JP; Advanced Photon Source, Argonne National Laboratory, Argonne, IL, 60439, USA.
  • Jiang YX; Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China.
  • Yin JX; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100190, China.
  • Pai YY; Laboratory for Topological Quantum Matter and Advanced Spectroscopy (B7), Department of Physics, Princeton University, Princeton, NJ, 08544, USA.
  • Yoon S; Laboratory for Quantum Emergence, Department of Physics, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China. yinjx@sustech.edu.cn.
  • Lupini AR; Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.
  • Nelson CS; Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.
  • Yin QW; Department of Physics, Gachon University, Seongnam, 13120, Republic of Korea.
  • Gong CS; Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.
  • Tu ZJ; National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY, 11973, USA.
  • Lei HC; Department of Physics and Beijing Key Laboratory of Opto-Electronic Functional Materials and Microdevices, Renmin University of China, Beijing, 100872, China.
  • Cheng JG; Department of Physics and Beijing Key Laboratory of Opto-Electronic Functional Materials and Microdevices, Renmin University of China, Beijing, 100872, China.
  • Hasan MZ; Department of Physics and Beijing Key Laboratory of Opto-Electronic Functional Materials and Microdevices, Renmin University of China, Beijing, 100872, China.
  • Wang Z; Department of Physics and Beijing Key Laboratory of Opto-Electronic Functional Materials and Microdevices, Renmin University of China, Beijing, 100872, China.
  • Yan B; Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China.
  • Thomale R; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100190, China.
  • Lee HN; Laboratory for Topological Quantum Matter and Advanced Spectroscopy (B7), Department of Physics, Princeton University, Princeton, NJ, 08544, USA.
  • Miao H; Department of Physics, Boston College, Chestnut Hill, MA, 02467, USA.
Nat Commun ; 13(1): 6348, 2022 Oct 26.
Article em En | MEDLINE | ID: mdl-36289236
ABSTRACT
The electronic instabilities in CsV3Sb5 are believed to originate from the V 3d-electrons on the kagome plane, however the role of Sb 5p-electrons for 3-dimensional orders is largely unexplored. Here, using resonant tender X-ray scattering and high-pressure X-ray scattering, we report a rare realization of conjoined charge density waves (CDWs) in CsV3Sb5, where a 2 × 2 × 1 CDW in the kagome sublattice and a Sb 5p-electron assisted 2 × 2 × 2 CDW coexist. At ambient pressure, we discover a resonant enhancement on Sb L1-edge (2s→5p) at the 2 × 2 × 2 CDW wavevectors. The resonance, however, is absent at the 2 × 2 × 1 CDW wavevectors. Applying hydrostatic pressure, CDW transition temperatures are separated, where the 2 × 2 × 2 CDW emerges 4 K above the 2 × 2 × 1 CDW at 1 GPa. These observations demonstrate that symmetry-breaking phases in CsV3Sb5 go beyond the minimal framework of kagome electronic bands near van Hove filling.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2022 Tipo de documento: Article
Texto completo
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2022 Tipo de documento: Article