Three-dimensional mapping of the altermagnetic spin splitting in CrSb

Yang, Guowei; Li, Zhanghuan; Sai, Yang; Li, Jiyuan; Zheng, H.Q.; Zhu, Weifan; Pan, Ze; Xu, Yonggang; Cao, Saizheng; Zhao, Wenxuan; Jana, Anupam; Zhang, Jiawen; Ye, Mao; Song, Yu; Hu, Lun‐Hui; Yang, Lexian; Fujii, Jun; Vobornik, I.; Shi, M.; Yuan, Huiqiu; Zhang, Yongjun; Xu, Yuanfeng; Liu, Yang

doi:10.1038/s41467-025-56647-7

articleNature CommunicationsFeb 7, 2025GOLD OA

Three-dimensional mapping of the altermagnetic spin splitting in CrSb

GYGuowei Yang ZLZhanghuan Li YSYang Sai JLJiyuan Li HZH.Q. Zheng

Zhejiang University · Chinese Academy of Sciences · +9 more institutions

PubMed

Indexed incrossrefdoajpubmed

Abstract

Abstract Altermagnetism, a kind of collinear magnetism that is characterized by a momentum-dependent band and spin splitting without net magnetization, has recently attracted considerable interest. Finding altermagnetic materials with large splitting near the Fermi level necessarily requires three-dimensional k -space mapping. While this is crucial for spintronic applications and emergent phenomena, it remains challenging. Here, using synchrotron-based angle-resolved photoemission spectroscopy (ARPES), spin-resolved ARPES and model calculations, we uncover a large altermagnetic splitting, up to ~1.0 eV, near the Fermi level in CrSb. We verify its bulk-type g -wave altermagnetism through systematic…

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114

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Topics

Keywords

Spin (aerodynamics)
Condensed matter physics
Physics

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