Rashba-Edelstein Magnetoresistance in Metallic Heterostructures

被引：134

作者：

Nakayama, Hiroyasu ^{[1
]}

Kanno, Yusuke ^{[1
]}

An, Hongyu ^{[1
]}

Tashiro, Takaharu ^{[1
]}

Haku, Satoshi ^{[1
]}

Nomura, Akiyo ^{[1
]}

Ando, Kazuya ^{[1
,2
]}

机构：

[1] Keio Univ, Dept Appl Phys & Physicoinformat, Yokohama, Kanagawa 2238522, Japan

[2] Japan Sci & Technol Agcy, PRESTO, Kawaguchi, Saitama 3320012, Japan

来源：

PHYSICAL REVIEW LETTERS | 2016年 / 117卷 / 11期

关键词：

SPIN-ORBIT TORQUE; ELECTRONS; CONVERSION; MAGNITUDE;

D O I：

10.1103/PhysRevLett.117.116602

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the observation of magnetoresistance originating from Rashba spin-orbit coupling (SOC) in a metallic heterostructure: the Rashba-Edelstein (RE) magnetoresistance. We show that the simultaneous action of the direct and inverse RE effects in a Bi/Ag/CoFeB trilayer couples current-induced spin accumulation to the electric resistance. The electric resistance changes with the magnetic-field angle, reminiscent of the spin Hall magnetoresistance, despite the fact that bulk SOC is not responsible for the magnetoresistance. We further found that, even when the magnetization is saturated, the resistance increases with increasing the magnetic-field strength, which is attributed to the Hanle magnetoresistance in this system.

引用

页数：6

共 49 条

[1] Quantitative study of the spin Hall magnetoresistance in ferromagnetic insulator/normal metal hybrids [J].