Electrical Detection of Polarity and Chirality of a Magnetic Vortex Using Spin-Motive Force Caused by Rashba Spin-Orbit Coupling

被引：3

作者：

Moon, Jung-Hwan ^{[1
]}

Kim, Kyoung-Whan ^{[2
,3
]}

Lee, Hyun-Woo ^{[2
,3
]}

Lee, Kyung-Jin ^{[1
,4
]}

机构：

[1] Korea Univ, Dept Mat Sci & Engn, Seoul 136701, South Korea

[2] Pohang Univ Sci & Technol, PCTP, Pohang 790784, Kyungbuk, South Korea

[3] Pohang Univ Sci & Technol, Dept Phys, Pohang 790784, Kyungbuk, South Korea

[4] Korea Inst Sci & Technol, Spin Convergence Res Ctr, Seoul 136791, South Korea

来源：

APPLIED PHYSICS EXPRESS | 2012年 / 5卷 / 12期

关键词：

Compendex;

D O I：

10.1143/APEX.5.123002

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We theoretically investigate the Rashba spin-motive force generated by a gyroscopic motion of a magnetic vortex in the presence of Rashba spin-orbit coupling. We show that the Rashba spin-motive force depends on not only the polarity of a vortex core but also the chirality of a vortex. Both polarity and chirality can be simultaneously determined by measuring electric signals. Our finding may be useful to electrically read the information of a magnetic vortex (i.e., polarity and chirality) for device applications, and to estimate the strength of Rashba spin-orbit coupling in a ferromagnet even when it is small. (C) 2012 The Japan Society of Applied Physics

引用

页数：3

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