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Probing orbital magnetism of a kagome metal CsV3Sb5 by a tuning fork resonator

Author

Listed:
  • Hengrui Gui

    (Zhejiang University)

  • Lin Yang

    (Hangzhou Dianzi University)

  • Xiaoyu Wang

    (Florida State University)

  • Dong Chen

    (Max Planck Institute for Chemical Physics of Solids
    Qingdao University)

  • Zekai Shi

    (Zhejiang University)

  • Jiawen Zhang

    (Zhejiang University)

  • Jia Wei

    (Zhejiang University)

  • Keyi Zhou

    (Zhejiang University)

  • Walter Schnelle

    (Max Planck Institute for Chemical Physics of Solids)

  • Yongjun Zhang

    (Hubei Normal University)

  • Yu Liu

    (Zhejiang University)

  • Alimamy F. Bangura

    (Florida State University)

  • Ziqiang Wang

    (Boston College)

  • Claudia Felser

    (Max Planck Institute for Chemical Physics of Solids)

  • Huiqiu Yuan

    (Zhejiang University
    Zhejiang University
    Zhejiang University
    Zhejiang University)

  • Lin Jiao

    (Zhejiang University)

Abstract

The recently discovered kagome metal CsV3Sb5 exhibits a complex phase diagram that encompasses frustrated magnetism, topological charge density wave (CDW), and superconductivity. One CDW state that breaks time-reversal symmetry was proposed in this compound, while the exact nature of the putative magnetic state remains elusive. To examine the thermodynamic state of CsV3Sb5 and assess the character of the associated magnetism, we conducted tuning fork resonator measurements of magnetotropic susceptibility over a broad range of angles, magnetic fields, and temperatures. We found a cascade of phase transitions in the CDW phase. Of particular interest is a highly anisotropic magnetic structure that arises below about 30 K, with a magnetic moment along the c-axis that has an extremely small magnitude. This magnetic state demonstrates extremely slow dynamics and small saturate field, all suggest that electronic phase below 30 K breaks time reversal symmetry and has an unconventional origin.

Suggested Citation

  • Hengrui Gui & Lin Yang & Xiaoyu Wang & Dong Chen & Zekai Shi & Jiawen Zhang & Jia Wei & Keyi Zhou & Walter Schnelle & Yongjun Zhang & Yu Liu & Alimamy F. Bangura & Ziqiang Wang & Claudia Felser & Huiq, 2025. "Probing orbital magnetism of a kagome metal CsV3Sb5 by a tuning fork resonator," Nature Communications, Nature, vol. 16(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-59534-3
    DOI: 10.1038/s41467-025-59534-3
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