Comparison of Finite-Difference and Finite-Element Schemes for Magnetization Processes in 3-D Particles

Author

Van de Wiele, Ben ; Manzin, Alessandra ; Dupré, Luc ; Olyslager, Femke ; Bottauscio, Oriano ; Chiampi, Mario

Author_Institution

Dept. of Electr. Energy, Syst. & Autom., Ghent Univ., Ghent

Volume

45

Issue

3

fYear

2009

fDate

3/1/2009 12:00:00 AM

Firstpage

1614

Lastpage

1617

Abstract

This paper compares two numerical schemes for the simulation of magnetization dynamics in 3-D particles. The first one is based on the finite-difference computation of the Landau-Lifshitz equation and on the magnetostatic field evaluation by fast Fourier transforms. The second one handles the spatial discretization of the effective field expression by a nodal finite-element method and solves the Poisson equation with a finite-element/boundary-element technique. The convergence of the methods is studied by varying the time and space discretization.

Keywords

Landau levels; Poisson equation; fast Fourier transforms; finite difference methods; finite element analysis; magnetisation; 3D particles; Landau-Lifshitz equation; Poisson equation; fast Fourier transforms; finite-difference scheme; finite-element scheme; finite-element/boundary-element technique; magnetization dynamics; magnetization process; magnetostatic field evaluation; space discretization; time discretization; Finite-difference (FD) methods; finite-element methods (FEMs); magnetization reversal; micromagnetics;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2009.2012756

Filename

4787299