Probing orbital magnetism of a kagome metal CsV3Sb5 by a tuning fork resonator
The recently discovered kagome metal CsV<sub>3</sub>Sb<sub>5</sub> 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 CsV<sub>3</sub>Sb<sub>5</sub> 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.
Authors
- Huiqiu Yuan (ORCID: https://orcid.org/0000-0002-9787-4884)
- Wei Jia (ORCID: https://orcid.org/0000-0001-5372-6102)
- Lin Jiao (ORCID: https://orcid.org/0000-0002-8343-0190)
- Zekai Shi (ORCID: https://orcid.org/0009-0003-5532-3763)
- Yu Liu (ORCID: https://orcid.org/0000-0001-8886-2876)
- Lin Yang (ORCID: https://orcid.org/0000-0001-8782-5731)
- A. F. Bangura (ORCID: https://orcid.org/0000-0002-1040-344X)
- Hengrui Gui
- Walter Schnelle (ORCID: https://orcid.org/0009-0007-0136-7268)
- Claudia Felser (ORCID: https://orcid.org/0000-0002-8200-2063)
- Dong Chen (ORCID: https://orcid.org/0000-0002-7170-9725)
- Yongjun Zhang (ORCID: https://orcid.org/0009-0003-3717-9139)
- Xiaoyu Wang (ORCID: https://orcid.org/0000-0002-5035-5761)
- Ziqiang Wang (ORCID: https://orcid.org/0000-0001-7617-2886)
- Jiawen Zhang (ORCID: https://orcid.org/0000-0002-6869-4614)
- Keyi Zhou (ORCID: https://orcid.org/0000-0002-5353-5995)
Institutions
- Florida State University (US)
- Boston College (US)
- Qingdao University (CN)
- Zhejiang A & F University (CN)
- Max Planck Institute for Chemical Physics of Solids (DE)
- National High Magnetic Field Laboratory (US)
- Institute for Advanced Study (DE)
- Zhejiang University-University of Edinburgh Institute (CN)
- Hubei Normal University (CN)
- Hangzhou Dianzi University (CN)
- Zhejiang University (CN)
Publication Details
- Journal
- Nature Communications
- Published
- 2025-05-08
- DOI
- https://doi.org/10.1038/s41467-025-59534-3
- Citations
- 5
- Primary Topic
- Topological Materials and Phenomena
- Type
- article
- Field-Weighted Citation Impact
- 6.23
Funders
- National Science Foundation
- U.S. Department of Energy
- Research Corporation for Science Advancement
- National High Magnetic Field Laboratory
- Deutsche Forschungsgemeinschaft
- National Natural Science Foundation of China
- Zhejiang University
- Fundamental Research Funds for the Central Universities
- Division of Materials Research
- Basic Energy Sciences
- High Magnetic Field Laboratory, Chinese Academy of Sciences
- Natural Science Foundation of Zhejiang Province