Micromagnetic analysis of domain variations in thin films

Author

Guo, Zhenzhou ; Torre, Edward Della

Author_Institution

Inst. of Magn. Res., George Washington Univ., Washington, DC, USA

Volume

29

Issue

6

fYear

1993

fDate

11/1/1993 12:00:00 AM

Firstpage

2521

Lastpage

2523

Abstract

A numerical micromagnetic model is developed that uses an iterative energy minimization method to obtain the domain structure of a soft magnetic thin film under various conditions. This model is used to study domain wall motion and magnetization rotation due to an external field. The results are consistent with domain-level calculations but show much more details. The effects of closure domain on susceptibility are examined. Some stiff modes in the micromagnetic calculations are identified, and an adaptive pushing algorithm is utilized to accelerate the convergence

Keywords

Permalloy; ferromagnetic properties of substances; iterative methods; magnetic domain walls; magnetic susceptibility; magnetic thin films; magnetisation; minimisation; FeNi film; Permalloy film; adaptive pushing algorithm; closure domain effects; convergence; domain structure; domain wall motion; domain-level calculations; iterative energy minimization method; magnetization rotation; micromagnetic analysis; numerical micromagnetic model; soft magnetic thin film; stiff modes; susceptibility; Acceleration; Iterative methods; Magnetic analysis; Magnetic domain walls; Magnetic films; Magnetization; Micromagnetics; Minimization methods; Numerical models; Transistors;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.280967

Filename

280967