Orientation dependence of the magnetoelastic coupling constants in strained FCC Co and Ni: an ab initio study

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:209

Article; Proceedings Paper

Guo, GY

关键词: magnetic anisotropy;    magnetoelastic coupling;   

DOI  :  10.1016/S0304-8853(99)00639-3

来源: Elsevier

【 摘 要 】

First-principles magnetocrystalline anisotropy energy calculations for FCC Co and Ni strained uniaxially along the [0 0 1] , [0 0 1] and [1 1 1] directions, have been performed to evaluate their phenomenologically defined anisotropy and magnetoelastic constants. In the cubic limit, the calculated magnetoelastic coupling constant B-1 of Co and B-2 of Ni agree well with experiments. The calculated Co B-1 and B-2 show a pronounced dependence on both the strain size and orientation whereas that of Ni remain almost constant in the strain region below 2.5%. (C) 2000 Elsevier Science B.V. All rights reserved.

【 授权许可】

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