Control of the magnetic anisotropy of epitaxially grown MnAs/GaAs ferromagnet-semiconductor hybrid superlattices

被引：10

作者：

Song, JH ^{[1
]}

Lee, JJ

Cui, Y

Ketterson, JB

Cho, S

机构：

[1] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA

[2] Northwestern Univ, Mat Res Ctr, Evanston, IL 60208 USA

[3] Univ Ulsan, Dept Phys, Ulsan 680749, South Korea

[4] Korea Inst Sci & Technol, Nanodevice Res Ctr, Seoul 136791, South Korea

来源：

APPLIED PHYSICS LETTERS | 2004年 / 85卷 / 18期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.1813630

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Epitaxial hybrid structures of the ferromagnet-semiconductor superlattice MnAs/GaAs were grown on GaAs(001) substrates by molecular-beam epitaxy and the dependence of the magnetic properties on the growth temperature and the periodicity were characterized. The magnetic anisotropy is strongly dependent on the surface reconstruction of GaAs(001) substrates. The increase of the periodicity from 5 nm/5 nm to 10 nm/10 nm also changes the magnetic anisotropy. These results demonstrate that the surface reconstruction of the substrate and the periodicity determine the magnetic structure of the MnAs/GaAs superlattices. (C) 2004 American Institute of Physics.

引用

页码：4079 / 4081

页数：3

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