Adaptive techniques for Landau–Lifshitz–Gilbert equation with magnetostriction

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Date

2005-08-25

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Publisher

Elsevier

Abstract

In this paper we propose a time–space adaptive method for micromagnetic problems with magnetostriction. The considered model consists of coupled Maxwell’s, Landau–Lifshitz–Gilbert (LLG) and elastodynamic equations. The time discretization of Maxwell’s equations and the elastodynamic equation is done by backward Euler method, the space discretization is based on Whitney edge elements and linear finite elements, respectively. The fully discrete LLG equation reduces to an ordinary differential equation, which is solved by an explicit method, that conserves the norm of the magnetization.

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Keywords

Maxwell’s equations, Magnetostriction, Numerical methods, Space–time a posteriori error estimates, Micromagnetism

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