Observation of the Unidirectional Magnetoresistance in Antiferromagnetic Insulator Fe2O3/Pt Bilayers
Source abstract
Abstract
Abstract Unidirectional magnetoresistance (UMR) has been observed in a variety of stacks with ferromagnetic/spin Hall material bilayer structures. In this work, UMR in antiferromagnetic insulator Fe2O3/Pt structure is reported. The UMR has a negative value, which is related to interfacial Rashba coupling and band splitting. Thickness‐dependent measurement reveals a potential competition between UMR and the unidirectional spin Hall magnetoresistance (USMR). This work reveals the existence of UMR in antiferromagnetic insulators/heavy metal bilayers and broadens the way for the application of antiferromagnet‐based spintronic devices.
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Research context
OpenAlex topics: Magnetic properties of thin films · Ferroelectric and Negative Capacitance Devices · Physics of Superconductivity and Magnetism
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Electrical and Computer Engineering University of Minnesota 200 Union St. SE Minneapolis Minnesota 55455 USA
Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology 77 Massachusetts Ave. Room 38–401 Cambridge MA 02139 USA
Research Institute of Electrical Communication Tohoku University 2‐1‐1 Katahira, Aoba‐ku Sendai 980‐8577 Japan
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