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

作者：Hengrui Gui, Lin Yang, Xiaoyu Wang, Dong Chen, Zekai Shi, Jiawen Zhang, Jia Wei, Keyi Zhou, Walter Schnelle, Yongjun Zhang, Yu Liu, A. F. Bangura, Ziqiang Wang, Claudia Felser, Huiqiu Yuan, Lin Jiao · 发表于：Nature Communications · 年份：2025 · DOI：10.1038/s41467-025-59534-3 · 被引用次数：13 · 研究领域：Topological Materials and Phenomena、Advanced Condensed Matter Physics、Cold Atom Physics and Bose-Einstein Condensates

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.