Observation of Spin Splitting in Room‐Temperature Metallic Antiferromagnet CrSb
Abstract 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. Suc...
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Wiley
2024-11-01
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| Online Access: | https://doi.org/10.1002/advs.202406529 |
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| author | Meng Zeng Ming‐Yuan Zhu Yu‐Peng Zhu Xiang‐Rui Liu Xiao‐Ming Ma Yu‐Jie Hao Pengfei Liu Gexing Qu Yichen Yang Zhicheng Jiang Kohei Yamagami Masashi Arita Xiaoqian Zhang Tian‐Hao Shao Yue Dai Kenya Shimada Zhengtai Liu Mao Ye Yaobo Huang Qihang Liu Chang Liu |
| author_facet | Meng Zeng Ming‐Yuan Zhu Yu‐Peng Zhu Xiang‐Rui Liu Xiao‐Ming Ma Yu‐Jie Hao Pengfei Liu Gexing Qu Yichen Yang Zhicheng Jiang Kohei Yamagami Masashi Arita Xiaoqian Zhang Tian‐Hao Shao Yue Dai Kenya Shimada Zhengtai Liu Mao Ye Yaobo Huang Qihang Liu Chang Liu |
| author_sort | Meng Zeng |
| collection | DOAJ |
| description | Abstract 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 Néel 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. |
| format | Article |
| id | doaj-art-6b383930f08e426ca377438cccce1e04 |
| institution | Kabale University |
| issn | 2198-3844 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-6b383930f08e426ca377438cccce1e042024-11-20T19:25:40ZengWileyAdvanced Science2198-38442024-11-011143n/an/a10.1002/advs.202406529Observation of Spin Splitting in Room‐Temperature Metallic Antiferromagnet CrSbMeng Zeng0Ming‐Yuan Zhu1Yu‐Peng Zhu2Xiang‐Rui Liu3Xiao‐Ming Ma4Yu‐Jie Hao5Pengfei Liu6Gexing Qu7Yichen Yang8Zhicheng Jiang9Kohei Yamagami10Masashi Arita11Xiaoqian Zhang12Tian‐Hao Shao13Yue Dai14Kenya Shimada15Zhengtai Liu16Mao Ye17Yaobo Huang18Qihang Liu19Chang Liu20Department of Physics and Shenzhen Institute for Quantum Science and Engineering (SIQSE) Southern University of Science and Technology (SUSTech) Shenzhen Guangdong 518055 ChinaDepartment of Physics and Shenzhen Institute for Quantum Science and Engineering (SIQSE) Southern University of Science and Technology (SUSTech) Shenzhen Guangdong 518055 ChinaDepartment of Physics and Shenzhen Institute for Quantum Science and Engineering (SIQSE) Southern University of Science and Technology (SUSTech) Shenzhen Guangdong 518055 ChinaDepartment of Physics and Shenzhen Institute for Quantum Science and Engineering (SIQSE) Southern University of Science and Technology (SUSTech) Shenzhen Guangdong 518055 ChinaDepartment of Physics and Shenzhen Institute for Quantum Science and Engineering (SIQSE) Southern University of Science and Technology (SUSTech) Shenzhen Guangdong 518055 ChinaDepartment of Physics and Shenzhen Institute for Quantum Science and Engineering (SIQSE) Southern University of Science and Technology (SUSTech) Shenzhen Guangdong 518055 ChinaDepartment of Physics and Shenzhen Institute for Quantum Science and Engineering (SIQSE) Southern University of Science and Technology (SUSTech) Shenzhen Guangdong 518055 ChinaBeijing National Laboratory for Condensed Matter Physics and Institute of Physics Chinese Academy of Sciences Beijing 100190 ChinaState Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Shanghai 200050 ChinaNational Synchrotron Radiation Laboratory and School of Nuclear Science and Technology University of Science and Technology of China Hefei Anhui 230026 ChinaJapan Synchrotron Radiation Research Institute (JASRI) Sayo Hyogo 679‐5198 JapanHiroshima Synchrotron Radiation Centre Hiroshima University Higashi‐Hiroshima Hiroshima 739‐0046 JapanKey Laboratory of Quantum Materials and Devices of Ministry of Education School of Physics Southeast University Nanjing Jiangsu 211189 ChinaDepartment of Physics and Shenzhen Institute for Quantum Science and Engineering (SIQSE) Southern University of Science and Technology (SUSTech) Shenzhen Guangdong 518055 ChinaDepartment of Physics and Shenzhen Institute for Quantum Science and Engineering (SIQSE) Southern University of Science and Technology (SUSTech) Shenzhen Guangdong 518055 ChinaHiroshima Synchrotron Radiation Centre Hiroshima University Higashi‐Hiroshima Hiroshima 739‐0046 JapanShanghai Synchrotron Radiation Facility Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai 201204 ChinaShanghai Synchrotron Radiation Facility Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai 201204 ChinaShanghai Synchrotron Radiation Facility Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai 201204 ChinaDepartment of Physics and Shenzhen Institute for Quantum Science and Engineering (SIQSE) Southern University of Science and Technology (SUSTech) Shenzhen Guangdong 518055 ChinaDepartment of Physics and Shenzhen Institute for Quantum Science and Engineering (SIQSE) Southern University of Science and Technology (SUSTech) Shenzhen Guangdong 518055 ChinaAbstract 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 Néel 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.https://doi.org/10.1002/advs.202406529angle‐resolved photoemission spectroscopydensity functional theory calculationsspin splitting antiferromagnetspintronicsunconventional antiferromagnet |
| spellingShingle | Meng Zeng Ming‐Yuan Zhu Yu‐Peng Zhu Xiang‐Rui Liu Xiao‐Ming Ma Yu‐Jie Hao Pengfei Liu Gexing Qu Yichen Yang Zhicheng Jiang Kohei Yamagami Masashi Arita Xiaoqian Zhang Tian‐Hao Shao Yue Dai Kenya Shimada Zhengtai Liu Mao Ye Yaobo Huang Qihang Liu Chang Liu Observation of Spin Splitting in Room‐Temperature Metallic Antiferromagnet CrSb Advanced Science angle‐resolved photoemission spectroscopy density functional theory calculations spin splitting antiferromagnet spintronics unconventional antiferromagnet |
| title | Observation of Spin Splitting in Room‐Temperature Metallic Antiferromagnet CrSb |
| title_full | Observation of Spin Splitting in Room‐Temperature Metallic Antiferromagnet CrSb |
| title_fullStr | Observation of Spin Splitting in Room‐Temperature Metallic Antiferromagnet CrSb |
| title_full_unstemmed | Observation of Spin Splitting in Room‐Temperature Metallic Antiferromagnet CrSb |
| title_short | Observation of Spin Splitting in Room‐Temperature Metallic Antiferromagnet CrSb |
| title_sort | observation of spin splitting in room temperature metallic antiferromagnet crsb |
| topic | angle‐resolved photoemission spectroscopy density functional theory calculations spin splitting antiferromagnet spintronics unconventional antiferromagnet |
| url | https://doi.org/10.1002/advs.202406529 |
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