Finite Electric Field Effects in the Large Perpendicular Magnetic Anisotropy Surface: A First-Principles Study
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Open Access
- 18 June 2009
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 102 (24), 247203
- https://doi.org/10.1103/physrevlett.102.247203
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. © 2009 The American Physical SocietyKeywords
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