First-principles prediction of enhanced magnetic anisotropy in FeCo alloys

被引：28

作者：

Wu, Dangxin ^{[1
]}

Zhang, Qiming ^{[1
]}

Liu, J. Ping ^{[1
]}

Yuan, Dingwang ^{[2
]}

Wu, Ruqian ^{[2
]}

机构：

[1] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA

[2] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 05期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.2840721

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The structural, electronic, and magnetic properties of FeCo alloys were studied by first-principles calculations. It has been found that the alloys prefer chemically noncubic geometries in a wide composition range. This produces appreciable uniaxial magnetic anisotropy, which facilitates interphase magnetic interaction and enhances the overall magnetization in exchange-coupled nanocomposite systems. Large magnetostrictive coefficients provide another venue for manipulations of magnetic anisotropy energies. (c) 2008 American Institute of Physics.

引用

页数：3

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