Significant change in in-plane magnetic anisotropy of (Ga,Mn)As epilayer induced by low-temperature annealing

被引:11
作者
Kato, H
Hamaya, K
Taniyama, T
Kitamoto, Y
Munekata, H
机构
[1] Tokyo Inst Technol, Dept Innovat & Engn Mat, Midori Ku, Yokohama, Kanagawa 2268502, Japan
[2] Tokyo Inst Technol, Imaging Sci & Engn Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 2004年 / 43卷 / 7A期
关键词
magnetic semiconductor; (Ga; Mn)As; annealing; magnetoresistance; magnetic anisotropy;
D O I
10.1143/JJAP.43.L904
中图分类号
O59 [应用物理学];
学科分类号
摘要
We find significant changes in the in-plane magnetic anisotropy of a (Ga,Mn)As epilayer by low-temperature annealing. Detailed magnetization and transport measurements reveal an enhancement in the contribution of a uniaxial anisotropy along [110] after annealing. The change in the magnetic anisotropy is affected by increasing hole concentration due to the annealing.
引用
收藏
页码:L904 / L906
页数:3
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