Domain structure and magnetotransport properties in (Ga,Mn)As wires

被引：1
|
作者：
Koizumi, G. [1 ]
Kond, T. [2 ]
Nomura, K. [2 ]
Kitamoto, Y. [1 ]
Munekata, H. [2 ]
机构：
[1] Tokyo Inst Technol, Dept Innovat & Engineered Mat, Tokyo 152, Japan
[2] Tokyo Inst Technol, Imaging Sci & Engn Lab, Tokyo, Japan
来源：
PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 3, NO 12 | 2006年 / 3卷 / 12期
关键词：
D O I：
10.1002/pssc.200672892
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We report the relationship between anisotropic magnetoresistance features and magnetic domain structure in (Ga,Mn)As wires. A magnetoresistance curve of the sample that is patterned into a wire with a constriction demonstrates step-like magnetization behavior in the magnetization reversal process, suggesting the domain-wall pinning due to the constriction in the wire. The wall pinning is observed in the domain images obtained from a magnetic linear dichroism mapping by using a scanning-laser magneto-optical microscope.
引用
收藏
页码：4090 / 4093
页数：4
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