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Absence of Altermagnetic Spin Splitting Character in Rutile Oxide RuO2

文献类型：期刊论文

作者Liu, Jiayu1,2,3; Zhan, Jie4,5; Li, Tongrui6,7; Liu, Jishan2,8; Cheng, Shufan9; Shi, Yuming1,3; Deng, Liwei1,3; Zhang, Meng10; Li, Chihao11,12; Ding, Jianyang1,3
刊名PHYSICAL REVIEW LETTERS
出版日期2024-10-24
卷号133期号:17页码:7
ISSN号0031-9007
DOI10.1103/PhysRevLett.133.176401
通讯作者Liu, Jishan(liujs@sari.ac.cn)
英文摘要Rutile RuO2 has been posited as a potential d- wave altermagnetism candidate, with a predicted significant spin splitting up to 1.4 eV. Despite accumulating theoretical predictions and transport measurements, direct spectroscopic observation of spin splitting has remained elusive. Here, we employ spin- and angle-resolved photoemission spectroscopy to investigate the band structures and spin polarization of thin-film and single-crystal RuO2. Contrary to expectations of altermagnetism, our analysis indicates that RuO2's electronic structure aligns with those predicted under nonmagnetic conditions, exhibiting no evidence of the hypothesized spin splitting. Additionally, we observe significant in-plane spin polarization of the low-lying bulk bands, which is antisymmetric about the high-symmetry plane and contrary to the d- wave spin texture due to time-reversal symmetry breaking in altermagnetism. These findings definitively challenge the altermagnetic order previously proposed for rutile RuO2, prompting a reevaluation of its magnetic properties.
资助项目National Key R&D Program of China[2023YFA1406304] ; National Science Foundation of China[U2032208] ; National Science Foundation of China[12004405] ; National Science Foundation of China[52271016] ; National Science Foundation of China[52188101] ; National Science Foundation of China[12225407] ; National Science Foundation of China[12074174] ; National Science Foundation of China[12434005] ; National Science Foundation of China[12174365] ; National Science Foundation of China[12325402] ; National Science Foundation of China[11927807] ; National Science Foundation of China[U2032207] ; National Science Foundation of China[11227902] ; Anhui Provincial Natural Science Foundation[2408085J003] ; National Key Projects for Research and Development of China[2021YFA1400400] ; Innovation Program for Quantum Science and Technology[2021ZD0302800] ; China National Postdoctoral Program for Innovative Talents[BX20240348]
WOS研究方向Physics
语种英语
WOS记录号WOS:001347184900009
出版者AMER PHYSICAL SOC
资助机构National Key R&D Program of China ; National Science Foundation of China ; Anhui Provincial Natural Science Foundation ; National Key Projects for Research and Development of China ; Innovation Program for Quantum Science and Technology ; China National Postdoctoral Program for Innovative Talents
源URL  
专题金属研究所_中国科学院金属研究所
通讯作者Liu, Jishan
作者单位1.Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, Shanghai 200050, Peoples R China
2.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai Synchrotron Radiat Facil, Shanghai 201210, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
5.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
6.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230026, Peoples R China
7.Univ Sci & Technol China, Sch Nucl Sci & Technol, Hefei 230026, Peoples R China
8.Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, Natl Key Lab Mat Integrated Circuits, Shanghai 200050, Peoples R China
9.Nanjing Univ, Dept Phys, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
10.Zhejiang Univ, Sch Phys, Hangzhou 310027, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Jiayu,Zhan, Jie,Li, Tongrui,et al. Absence of Altermagnetic Spin Splitting Character in Rutile Oxide RuO2[J]. PHYSICAL REVIEW LETTERS,2024,133(17):7.
APA Liu, Jiayu.,Zhan, Jie.,Li, Tongrui.,Liu, Jishan.,Cheng, Shufan.,...&Shen, Dawei.(2024).Absence of Altermagnetic Spin Splitting Character in Rutile Oxide RuO2.PHYSICAL REVIEW LETTERS,133(17),7.
MLA Liu, Jiayu,et al."Absence of Altermagnetic Spin Splitting Character in Rutile Oxide RuO2".PHYSICAL REVIEW LETTERS 133.17(2024):7.

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来源：金属研究所

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