Observation of Spin Splitting in Room-Temperature Metallic Antiferromagnet CrSb

Zeng, Meng1,2; Zhu, Ming-Yuan1,2; Zhu, Yu-Peng1,2; Liu, Xiang-Rui1,2; Ma, Xiao-Ming1,2; Hao, Yu-Jie1,2; Liu, Pengfei1,2; Qu, Gexing3,4; Yang, Yichen5; Jiang, Zhicheng6,7; Yamagami, Kohei8; Arita, Masashi9; Zhang, Xiaoqian10; Shao, Tian-Hao1,2; Dai, Yue1,2; Shimada, Kenya9; Liu, Zhengtai11; Ye, Mao11; Huang, Yaobo11; Liu, Qihang1,2; Liu, Chang1,2

2024-09-01

10.1002/advs.202406529

ADVANCED SCIENCE   影响因子和分区

2198-3844

["Recently, unconventional antiferromagnets that enable the spin splitting (SS) of electronic states have been theoretically proposed and experimentally realized, where the magnetic sublattices containing moments pointing at different directions are connected by a novel set of symmetries. Such SS is substantial, k-dependent, and independent of the spin-orbit coupling (SOC) strength, making these magnets promising materials for antiferromagnetic spintronics. Here, combined with angle-resolved photoemission spectroscopy (ARPES) and density functional theory (DFT) calculations, a systematic study on CrSb, a metallic spin-split antiferromagnet candidate with N & eacute;el temperature TN = 703 K, is conducted. The data reveal the electronic structure of CrSb along both out-of-plane and in-plane momentum directions, rendering an anisotropic k-dependent SS that agrees well with the calculational results. The magnitude of such SS reaches up to at least 0.8 eV at non-high-symmetry momentum points, which is significantly higher than the largest known SOC-induced SS. This compound expands the choice of materials in the field of antiferromagnetic spintronics and is likely to stimulate subsequent investigations of high-efficiency spintronic devices that are functional at room temperature.","A substantial antiferromagnetism-induced momentum-dependent band splitting is observed in room-temperature metallic antiferromagnet CrSb. Using high-resolution angle-resolved photoemission spectroscopy measurements, clear evolution of band splitting along both out-of-plane and in-plane directions is realized. This work provides spectroscopic evidence for CrSb as a spin-split antiferromagnet and showcases its potential for applications in the evolving landscape of antiferromagnetic spintronics. image"]

angle-resolved photoemission spectroscopy density functional theory calculations spin splitting antiferromagnet spintronics unconventional antiferromagnet

SCI

英语

第一 ; 通讯

National Natural Science Foundation of China (NSFC)["12204221","12274194"] ; Guangdong Provincial Key Laboratory of Computational Science and Material Design[2019B030301001] ; Guangdong Innovative and Entrepreneurial Research Team Program[2016ZT06D348] ; Guangdong Natural Science Foundation[2022A1515012283] ; Shenzhen Science and Technology Program[RCJC20221008092722009] ; Shanghai Synchrotron Radiation Facility (SSRF)[11227902] ; null[2022YFA1403700] ; null[2020YFA0308900]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:001316162000001

WILEY

Web of Science

1.Southern Univ Sci & Technol SUSTech, Dept Phys, Shenzhen 518055, Guangdong, Peoples R China
2.Southern Univ Sci & Technol SUSTech, Shenzhen Inst Quantum Sci & Engn SIQSE, Shenzhen 518055, Guangdong, Peoples R China
3.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
4.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China
5.Chinese Acad Sci, State Key Lab Funct Mat Informat, Shanghai Inst Microsyst & Informat Technol, Shanghai 200050, Peoples R China
6.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230026, Anhui, Peoples R China
7.Univ Sci & Technol China, Sch Nucl Sci & Technol, Hefei 230026, Anhui, Peoples R China
8.Japan Synchrotron Radiat Res Inst JASRI, Sayo, Hyogo 6795198, Japan
9.Hiroshima Univ, Hiroshima Synchrotron Radiat Ctr, Higashihiroshima, Hiroshima 7390046, Japan
10.Southeast Univ, Sch Phys, Key Lab Quantum Mat & Devices, Minist Educ, Nanjing 211189, Jiangsu, Peoples R China
11.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China

Zeng, Meng,Zhu, Ming-Yuan,Zhu, Yu-Peng,et al. Observation of Spin Splitting in Room-Temperature Metallic Antiferromagnet CrSb[J]. ADVANCED SCIENCE,2024.

Zeng, Meng.,Zhu, Ming-Yuan.,Zhu, Yu-Peng.,Liu, Xiang-Rui.,Ma, Xiao-Ming.,...&Liu, Chang.(2024).Observation of Spin Splitting in Room-Temperature Metallic Antiferromagnet CrSb.ADVANCED SCIENCE.

Zeng, Meng,et al."Observation of Spin Splitting in Room-Temperature Metallic Antiferromagnet CrSb".ADVANCED SCIENCE (2024).