Modelling the evolution of domains in nanoelements using finite elements

Author

Ridley, P.H.W. ; Roberts, G.W. ; Wongsam, M.A. ; Chantrell, R.W. ; Gore, J. ; Maylin, M.

Author_Institution

Univ. of Wales, Bangor, UK

Volume

35

Issue

5

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

3874

Lastpage

3876

Abstract

Investigation into the theoretical magnetic behaviour of permalloy is described. The material is discretised into a structure of nanoelements, so that we may employ micromagnetic simulations in order to investigate the material behaviour. In this paper we describe the formation and structure of domains in an array of interacting nanoelements with varying space between them. The simulations begin at saturation and end when the nanoelements are in a zero field equilibrium state. The time evolution of the system is described by the Landau-Lifschitz equation of motion and the field calculations are carried out by the use of a finite element spatial discretisation scheme

Keywords

Permalloy; ferromagnetic materials; finite element analysis; magnetic domains; nanostructured materials; FeNi; Landau-Lifschitz equation of motion; domain evolution; finite element analysis; finite element spatial discretisation scheme; micromagnetic simulations; nanoelements; permalloy; saturation; zero field equilibrium state; Anisotropic magnetoresistance; Equations; Finite element methods; Magnetic anisotropy; Magnetic domains; Magnetic materials; Magnetostatics; Micromagnetics; Perpendicular magnetic anisotropy; Saturation magnetization;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.800693

Filename

800693