Study of Perpendicular Magnetic Anisotropy and Magneto-Elastic Coupling in the First Principles and Phenomenology

Author

Inoue, Junichi ; Itoh, Hayato ; Tanaka, M.A. ; Mibu, K. ; Niizeki, Tomohiko ; Yanagihara, Hideto ; Kita, Eiji

Author_Institution

Fac. of Pure & Appl. Sci., Univ. of Tsukuba, Tsukuba, Japan

Volume

49

Issue

7

fYear

2013

fDate

Jul-13

Firstpage

3269

Lastpage

3272

Abstract

Considering the importance of magneto-elastic (ME) effects on the magnetic anisotropy (MA) of thin films, phenomenological analysis of the MA of Co ferrites on (001) and (111) substrates is conducted. It is found that thin films of Co ferrites on (111) substrates may produce oblique magnetization, while those on (001) substrates exhibit perpendicular MA. First-principles calculations for the ME constant of L1₀ ordered alloys, which show large uniaxial MA, are also performed, and it is determined that the value of the ME constant is on the same order of magnitude as that for the Co ferrites.

Keywords

ab initio calculations; cobalt compounds; ferrites; magnetic anisotropy; magnetic thin films; magnetoelastic effects; Co_0.8Fe_2.2O₄; ferrites; first principles calculations; magnetization; magneto-elastic coupling; perpendicular magnetic anisotropy; phenomenological analysis; thin films; Ferrites; Lattices; Magnetization; Metals; Perpendicular magnetic anisotropy; Substrates; , Co ferrite; $L1_{0}$ ordered alloys; magneto-elastic coupling; perpendicular magnetic anisotropy;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2013.2243703

Filename

6558969