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
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页数：3
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