Enhancement of magnetocrystalline anisotropy in ferromagnetic Fe films by intra-atomic noncollinear magnetism

被引:75
作者
Nakamura, K [1 ]
Ito, T
Freeman, AJ
Zhong, LP
Fernandez-de-Castro, J
机构
[1] Mie Univ, Dept Engn Phys, Tsu, Mie 5148507, Japan
[2] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA
[3] Seagate Technol LLC, Minneapolis, MN 55435 USA
关键词
D O I
10.1103/PhysRevB.67.014420
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We generalize the full-potential linearized augmented plane-wave method with a single slab geometry in order to treat noncollinear magnetism with no shape approximation for the magnetization, and apply this scheme to investigate free-standing Fe(001) monolayers with lattice constants matching those of fcc Ag(001) and Cu(001) substrates. Intra-atomic noncollinear magnetism on a smaller length scale inside the atom is observed in the ferromagnetic state, and is found to enhance the magnetocrystalline anisotropy energy (by 17similar to20%) compared to values determined for their collinear magnetic state.
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页数:6
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