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Electron theory of perpendicular magnetic anisotropy of Co-ferrite thin films
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/content/aip/journal/adva/4/2/10.1063/1.4866279
2014-02-14
2014-10-24

Abstract

We develop an electron theory for the t electrons of Co2+ ions to clarify the perpendicular magnetic anisotropy (PMA) mechanism of Co-ferrite thin films by considering the spin-orbit interaction (SOI) and crystal-field (CF) potentials induced by the local symmetry around the Co ions and the global tetragonal symmetry of the film. Uniaxial and in-plane MA constants and at 0 K, respectively, are calculated for various values of SOI and CF. We show that reasonable parameter values explain the observed PMA and that the orbital moment for the in-plane magnetization reduces to nearly half of that of the out-of-plane magnetization.

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Scitation: Electron theory of perpendicular magnetic anisotropy of Co-ferrite thin films
http://aip.metastore.ingenta.com/content/aip/journal/adva/4/2/10.1063/1.4866279
10.1063/1.4866279
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