Magnetization of a biaxial single-domain ferromagnetic particle

Author

Fredkin, D.R. ; Koehler, T.R.

Author_Institution

Dept. of Phys., California Univ., La Jolla, CA, USA

Volume

26

Issue

2

fYear

1990

fDate

3/1/1990 12:00:00 AM

Firstpage

1071

Lastpage

1073

Abstract

A single-domain particle with general quadratic anisotropy energy, of crystalline or magnetostatic origin, is shown to have at most one metastable orientation of its magnetization in the presence of an external magnetic field. A reliable and efficient numerical algorithm is given for the determination of the orientation of the magnetization in the stable and metastable states, and a method of determining whether or not a metastable state exists by monitoring iteration for the metastable state is explained. The proposed algorithm is also efficient in the special case of uniaxial anisotropy

Keywords

ferromagnetism; iterative methods; magnetic anisotropy; magnetic properties of fine particles; magnetisation; biaxial single-domain ferromagnetic particle; iteration; magnetic orientation; magnetization; metastable orientation; numerical algorithm; quadratic anisotropy energy; uniaxial anisotropy; Anisotropic magnetoresistance; Crystallization; Lagrangian functions; Magnetic anisotropy; Magnetic domains; Magnetic fields; Magnetization; Magnetostatics; Metastasis; Perpendicular magnetic anisotropy;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.106505

Filename

106505