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Published on: March 24, 2019
Finite electric field effects in the large perpendicular magnetic anisotropy surface Pt/Fe/Pt(001): a
Masahito Tsujikawa1, Tatsuki Oda
1Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa 920-1192, Japan.
Abstract:
We investigate crystalline magnetic anisotropy in the electric field (EF) for the FePt surface which has a large perpendicular anisotropy, by means of the first-principles approach. Anisotropy is reduced linearly with respect to the inward EF, associated with the induced spin density around the Fe layer. Although the magnetic anisotropy energy (MAE) density reveals large variation around the atoms, the intrinsic contribution to the MAE is found to mainly come from the Fe layer. The surface without the capping Pt layer also shows similar linear dependence.
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