First-principles prediction of enhanced magnetic anisotropy in FeCo alloys | Zendy

Dangxin Wu | Zendy; Qiming Zhang | Zendy; J. Ping Liu | Zendy; Dingwang Yuan | Zendy; Ruqian Wu | Zendy

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First-principles prediction of enhanced magnetic anisotropy in FeCo alloys

Author(s) -

Dangxin Wu,

Qiming Zhang,

J. Ping Liu,

Dingwang Yuan,

Ruqian Wu

Publication year - 2008

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.2840721

Subject(s) - magnetostriction , condensed matter physics , magnetic anisotropy , materials science , anisotropy , magnetization , magnetic shape memory alloy , interphase , range (aeronautics) , magnetic field , physics , composite material , quantum mechanics , biology , genetics

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.

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