Published 2019 | Version v1
Journal article Metadata-only

Anisotropic magnetoresistance and nontrivial spin Hall magnetoresistance in Pt/α–Fe2O3 bilayers

Creators

  • 1. Ohio State University, Columbus, OH (United States)

Description

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–Fe2O3 (0001) epitaxial films at 10 K, which provide evidence for the magnetic proximity effect. The Neel order of Pt/α–Fe2O3 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–Fe2O3 bilayers.

Availability note (English)

Available from https://www.osti.gov/servlets/purl/1594164; https://www.osti.gov/biblio/1594164; DOE Accepted Manuscript full text, or the publishers Best Available Version will be available free of charge after the embargo period

Additional details

Identifiers

URL
https://www.osti.gov/servlets/purl/1594164; https://www.osti.gov/biblio/1594164;
DOI
10.1103/PhysRevB.100.220408;
arXiv
arXiv:1812.07628;

Publishing Information

Journal Title
Physical Review B
Journal Volume
100
Journal Issue
22
Journal Page Range
vp.
ISSN
2469-9950

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
54046425
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
Descriptors DEI
ANISOTROPY; ANTIFERROMAGNETISM; HALL EFFECT; LAYERS; MAGNETIZATION; MAGNETORESISTANCE; PLATINUM; PROXIMITY EFFECT; SPIN
Descriptors DEC
ANGULAR MOMENTUM; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELEMENTS; MAGNETISM; METALS; PARTICLE PROPERTIES; PHYSICAL PROPERTIES; PLATINUM METALS; TRANSITION ELEMENTS

Optional Information

Contract/Grant/Project number
SC0001304; DMR-1420451
Funding organization
USDOE Office of Science - SC, Basic Energy Sciences (BES) (United States); NSF MRSEC (United States)
Secondary number(s)
OSTIID--1594164