Finite Electric Field Effects in the Large Perpendicular Magnetic Anisotropy SurfacePt/Fe/Pt(001): A First-Principles Study

2009/05/01 by Masahito Tsujikawa, Tatsuki Oda · 6 citations
Materials Science · Mathematics · Physics and Astronomy · #Algorithm #Anisotropy #Computer science #Condensed matter physics #Electric field #Field (mathematics) #Geometry #Magnetic and transport properties of perovskites and related materials #Magnetic field #Magnetic properties of thin films #Mathematics #Multiferroics and related materials #Perpendicular #Physics #Quantum mechanics #cond-mat.mes-hall #cond-mat.mtrl-sci

paper · pdf · doi:10.1103/physrevlett.102.247203

9 pages, 3 figures

arxiv created 2009/05/01 · openalex publication_date 2009/06/18 · arxiv updated 2015/05/13 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

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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