Synchrotron X-ray spectroscopic study of the antiferromagnetic-ferromagnetic transition in Ni-doped FeRh epitaxial thin films
- Chinese Academy of Sciences (CAS), Beijing (China). Institute of High Energy Physics; University of Hyogo (Japan)
- State Grid Sichuan Electric Power Research Institute, Sichuan (China); Tsinghua Univ., Beijing (China)
- Univ. of Tokyo (Japan)
- Tsinghua Univ., Beijing (China)
- Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
- Japan Synchrotron Radiation Research Institute (JASRI), Sayo, Hyogo (Japan)
- University of Hyogo (Japan); Osaka Univ. (Japan)
Here we investigate the change of magnetism and electronic structure across the antiferromagnetic (AFM)-ferromagnetic (FM) transition of Ni-doped FeRh epitaxial thin films by x-ray magnetic circular dichroism (XMCD) and hard x-ray photoemission spectroscopy (HAXPES). The Rh L edge XMCD results indicate that the remnant FM phase at low temperature possesses smaller Rh moment than the normal FM phase which can undergo AFM-FM transition. The HAXPES results confirm an increase of Rh 4d density of state at the Fermi level and a possible "well-screened" state at the Ni 2p photoemission in the FM phase. FM fluctuation of the inter-site Fe-Fe exchange coupling within the AFM phase can be interpreted from the temperature dependence of the Fe 2p HAXPES results.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); National Natural Science Foundation of China (NSFC); Japan Society for the Promotion of Science (JSPS) (KAKENHI); Basic Research Funding of IHEP
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 2386986
- Alternate ID(s):
- OSTI ID: 1894363
- Journal Information:
- Journal of Alloys and Compounds, Journal Name: Journal of Alloys and Compounds Vol. 921; ISSN 0925-8388
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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