Current-induced domain-wall motion in U-shaped permalloy wire

被引：1
|
作者：
Tsai, JL [1 ]
Yao, YD
Lee, SF
Liou, Y
Chen, TY
Cheng, KW
机构：
[1] Natl Chung Hsing Univ, Dept Mat Engn, Taichung 40227, Taiwan
[2] Acad Sinica, Inst Phys, Taipei, Taiwan
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2005年 / 41卷 / 10期
关键词：
current density; vortex domain wall;
D O I：
10.1109/TMAG.2005.854815
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The current-induced domain-wall motion has been observed by using a U-shaped permalloy wire. We observed two magnetic states in a U-shaped pattern. One is the vortex domain wall at the center of semicircular are region of the U-shaped pattern, and the. other is the continuous magnetic state without the domain wall in between. In general, the current density of the order of similar to 10(7) A/cm(2) is needed to drive a magnetic domain wall. In this paper, the critical current for domain-wall motion increases as the bias field increases. The bias field means the field deviated from the switching field of the wire.
引用
收藏
页码：2627 / 2629
页数：3
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