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Title: Observation of the Unidirectional Magnetoresistance in Antiferromagnetic Insulator Fe 2 O 3 /Pt Bilayers
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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Award ID(s):
2011401
NSF-PAR ID:
10506683
Author(s) / Creator(s):
; ; ; ; ;
Publisher / Repository:
Advanced Electronic Materials
Date Published:
Journal Name:
Advanced Electronic Materials
Volume:
9
Issue:
8
ISSN:
2199-160X
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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