Absence of Altermagnetic Spin Splitting Character in Rutile Oxide RuO 2
Chinese Academy of Sciences · Shanghai Advanced Research Institute · +13 more institutions
Abstract
Rutile RuO_{2} 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 RuO_{2}. Contrary to expectations of altermagnetism, our analysis indicates that RuO_{2}'s electronic structure aligns with those predicted under nonmagnetic conditions, exhibiting no evidence of the hypothesized spin splitting. Additionally, we observe significant in-plane…
Citation impact
- FWCI
- 37.99
- Percentile
- 100%
- References
- 47
Authors
22- JLJiayu LiuCorresponding
Chinese Academy of Sciences, Shanghai Advanced Research Institute, Shanghai Institute of Microsystem and Information Technology, University of Chinese Academy of Sciences, Shanghai Synchrotron Radiation Facility
- JZJie Zhan
University of Science and Technology of China, Chinese Academy of Sciences
- TLTongrui Li
University of Science and Technology of China, National Synchrotron Radiation Laboratory
- JLJishan Liu
Chinese Academy of Sciences, Shanghai Advanced Research Institute, Shanghai Institute of Microsystem and Information Technology, University of Chinese Academy of Sciences, Shanghai Synchrotron Radiation Facility
- SCShufan Cheng
National Laboratory of Solid State Microstructures, Nanjing University
Topics & keywords
- Rutile
- Condensed matter physics
- Photoemission spectroscopy
- Materials science
- Electronic structure
- Spin polarization
- Physics
- Spin (aerodynamics)
Funding
- NSNational Science FoundationAwards: U2032208, 11227902
- NNNational Natural Science Foundation of ChinaAwards: 52271016, 12004405, 12434005, 12074174, 11227902, 11927807, 12174365, 12325402, U2032207, 12225407, 52188101, U2032208
- OROak Ridge Institute for Science and EducationAward: DFZX202319
- NSNatural Science Foundation of Anhui ProvinceAwards: 2408085J003, 2021YFA1400400
- NPNational Postdoctoral Program for Innovative TalentsAward: BX20240348
- NKNational Key Research and Development Program of ChinaAward: 2023YFA1406304