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Title: Anisotropic magnetoresistance and nontrivial spin Hall magnetoresistance in Pt / α F e 2 O 3 bilayers

Journal Article · · Physical Review B

Magnetic proximity effect has only been conclusively observed in ferromagnet-based systems. We report the observation of anomalous Hall effect and angular-dependent anisotropic magnetoresistance in Pt on antiferromagnetic Pt / α F e 2 O 3 (0001) epitaxial films at 10 K, which provide evidence for the magnetic proximity effect. The Neel order of Pt / α F e 2 O 3 and the induced magnetization in Pt show a unique angular-dependent magnetoresistance compared with all other ferromagnetic and antiferromagnetic systems. In conclusion, a macrospin response model is established and can explain the antiferromagnetic spin configuration and all main magnetoresistance features in the Pt / α F e 2 O 3 bilayers.

Research Organization:
The Ohio State Univ., Columbus, OH (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); NSF MRSEC
Grant/Contract Number:
SC0001304; DMR-1420451
OSTI ID:
1594164
Report Number(s):
DOE-OSU-01304; PRBMDO; TRN: US2101330
Journal Information:
Physical Review B, Vol. 100, Issue 22; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 27 works
Citation information provided by
Web of Science

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