Domain-wall displacement triggered by an ac current below threshold

被引:26
作者
Tatara, G
Saitoh, E
Ichimura, M
Kohno, H
机构
[1] PRESTO, JST, Kawaguchi, Saitama 3320012, Japan
[2] Tokyo Metropolitan Univ, Grad Sch Sci, Hachioji, Tokyo 1920397, Japan
[3] Keio Univ, Dept Phys, Yokohama, Kanagawa 2238522, Japan
[4] Hitachi Ltd, Adv Res Lab, Hatoyama, Saitama 3500395, Japan
[5] Osaka Univ, Grad Sch Engn Sci, Toyonaka, Osaka 5608531, Japan
关键词
D O I
10.1063/1.1944902
中图分类号
O59 [应用物理学];
学科分类号
摘要
It is theoretically demonstrated that a displacement of a pinned domain wall, typically of order of Am, can be driven by use of an ac current which is below threshold value. The point here is that finite motion around the pinning center by a low current is enhanced significantly by the resonance if the frequency is tuned close to the pinning frequency as demonstrated by recent experiment. (c) 2005 American Institute of Physics.
引用
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页码:1 / 2
页数:2
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