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Discovery of conjoined charge density waves in the kagome superconductor CsV3Sb5

Author

Listed:
  • Haoxiang Li

    (Oak Ridge National Laboratory
    The Hong Kong University of Science and Technology (Guangzhou))

  • G. Fabbris

    (Argonne National Laboratory)

  • A. H. Said

    (Argonne National Laboratory)

  • J. P. Sun

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Yu-Xiao Jiang

    (Princeton University)

  • J.-X. Yin

    (Southern University of Science and Technology)

  • Yun-Yi Pai

    (Oak Ridge National Laboratory)

  • Sangmoon Yoon

    (Oak Ridge National Laboratory
    Gachon University)

  • Andrew R. Lupini

    (Oak Ridge National Laboratory)

  • C. S. Nelson

    (Brookhaven National Laboratory)

  • Q. W. Yin

    (Renmin University of China)

  • C. S. Gong

    (Renmin University of China)

  • Z. J. Tu

    (Renmin University of China)

  • H. C. Lei

    (Renmin University of China)

  • J.-G. Cheng

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • M. Z. Hasan

    (Princeton University)

  • Ziqiang Wang

    (Boston College)

  • Binghai Yan

    (Weizmann Institute of Science)

  • R. Thomale

    (University of Würzburg)

  • H. N. Lee

    (Oak Ridge National Laboratory)

  • H. Miao

    (Oak Ridge National Laboratory)

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.

Suggested Citation

  • Haoxiang Li & G. Fabbris & A. H. Said & J. P. Sun & Yu-Xiao Jiang & J.-X. Yin & Yun-Yi Pai & Sangmoon Yoon & Andrew R. Lupini & C. S. Nelson & Q. W. Yin & C. S. Gong & Z. J. Tu & H. C. Lei & J.-G. Che, 2022. "Discovery of conjoined charge density waves in the kagome superconductor CsV3Sb5," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-33995-2
    DOI: 10.1038/s41467-022-33995-2
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    References listed on IDEAS

    as
    1. Yuhang Jiang & Xinyuan Lai & Kenji Watanabe & Takashi Taniguchi & Kristjan Haule & Jinhai Mao & Eva Y. Andrei, 2019. "Charge order and broken rotational symmetry in magic-angle twisted bilayer graphene," Nature, Nature, vol. 573(7772), pages 91-95, September.
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    Cited by:

    1. H. Miao & T. T. Zhang & H. X. Li & G. Fabbris & A. H. Said & R. Tartaglia & T. Yilmaz & E. Vescovo & J.-X. Yin & S. Murakami & X. L. Feng & K. Jiang & X. L. Wu & A. F. Wang & S. Okamoto & Y. L. Wang &, 2023. "Signature of spin-phonon coupling driven charge density wave in a kagome magnet," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    2. Boqin Song & Tianping Ying & Xianxin Wu & Wei Xia & Qiangwei Yin & Qinghua Zhang & Yanpeng Song & Xiaofan Yang & Jiangang Guo & Lin Gu & Xiaolong Chen & Jiangping Hu & Andreas P. Schnyder & Hechang Le, 2023. "Anomalous enhancement of charge density wave in kagome superconductor CsV3Sb5 approaching the 2D limit," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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