Analysis of magnetic anisotropy for Co2Cr0.6Fe0.4Al thin films epitaxially grown on GaAs

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:310

Article

Uemura, Tetsuya ; Yano, Toshifumi ; Matsuda, Ken-ichi ; Yamamoto, Masafumi

关键词: Heusler alloy;    CCFA;    magnetic anisotropy;    GaAs;   

DOI  :  10.1016/j.jmmm.2006.10.990

来源: Elsevier

【 摘 要 】

The structural and magnetic properties of Co2Cr0.6Fe0.4Al (CCFA) thin. lms epitaxially grown on GaAs substrates by sputtering were investigated. The CCFA film directly grown on GaAs showed a cube-on-cube crystallographic relation, while it was rotated by 45 degrees in the (001) plane when a thin MgO layer was inserted between the CCFA and GaAs. Both samples showed strong magnetic anisotropy, in which a uniaxial anisotropy with an easy axis of [110](GaAs) or [1-10](GaAs) dominated with a slight cubic anisotropy having easy axes of < 110 >(CCFA) superimposed. The uniaxial anisotropy constants were approximately 1.6 times as large as the cubic anisotropy constants for both samples. (C) 2006 Elsevier B.V. All rights reserved.

【 授权许可】

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