2D and 3D calculations of micromagnetic wall structures using finite elements

Author

Bagnérés-Viallix, A. ; Baras, P. ; Albertini, J.B.

Author_Institution

Boston Univ., MA, USA

Volume

27

Issue

5

fYear

1991

fDate

9/1/1991 12:00:00 AM

Firstpage

3819

Lastpage

3822

Abstract

To compute wall structures in a uniaxial magnetic garnet, static micromagnetic equations are solved using the finite-element method. After setting up the physical and the mathematical context, the discretized equations are presented and discretized by standard first-order brick finite elements. A descent method, solving the nonlinear problem, is discussed, and some simulation results are given. This method is found to be time-consuming in 3-D, and a general framework for an adapted mesh algorithm that will speed up the computations is proposed.

Keywords

finite element analysis; garnets; magnetic anisotropy; magnetic domain walls; 2D calculations; 3D calculations; adapted mesh algorithm; computations; descent method; discretized equations; finite-element method; magnetisation; micromagnetic wall structures; standard first-order brick finite elements; uniaxial magnetic garnet; Anisotropic magnetoresistance; Computational modeling; Demagnetization; Finite element methods; Garnets; High definition video; Magnetic materials; Magnetization; Micromagnetics; Nonlinear equations;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.104934

Filename

104934