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Spin Hall magnetoresistance in an antiferromagnetic magnetoelectric Cr2O3/heavy-metal W heterostructure.

Authors :
Ji, Y.
Miao, J.
Meng, K. K.
Ren, Z. Y.
Dong, B. W.
Xu, X. G.
Wu, Y.
Jiang, Y.
Source :
Applied Physics Letters; 6/26/2017, Vol. 110 Issue 26, p1-4, 4p
Publication Year :
2017

Abstract

The spin Hall magnetoresistance (SMR) effect is studied in a magnetoelectric Cr<subscript>2</subscript>O<subscript>3</subscript>/heavy-metal W heterostructure. The Cr<subscript>2</subscript>O<subscript>3</subscript> film is confirmed as the α-phase, and its Néel temperature is determined. A clear SMR behavior is observed at the interface of Cr<subscript>2</subscript>O<subscript>3</subscript>/W. A nearly 0.1% SMR ratio is achieved under a magnetic field of 9 T, which is larger than the reported value in the SrMnO<subscript>3</subscript>/Pt structure. A systematic study on the variations of SMR as functions of the magnetic field and its angle is performed. Our results indicate that the antiferromagnetic magnetoelectric Cr<subscript>2</subscript>O<subscript>3</subscript>/W structure has a promising prospect application in future spintronic devices. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00036951
Volume :
110
Issue :
26
Database :
Complementary Index
Journal :
Applied Physics Letters
Publication Type :
Academic Journal
Accession number :
123872197
Full Text :
https://doi.org/10.1063/1.4989680