L. Banas, M. Page, D. Praetorius:

"A convergent linear finite element scheme for the Maxwell-Landau-Lifshitz-Gilbert equations";

in: "ASC Report 09/2013", issued by: Institute for Analysis and Scientific Computing; Vienna University of Technology, Wien, 2013, ISBN: 978-3-902627-06-3, 1 - 25.

Abstract. We consider a lowest-order nite element discretization of the nonlinear system of Maxwell's and Landau-Lifshitz-Gilbert equations (MLLG). Two algorithms are proposed to numerically solve this problem, both of which only require the solution of at most two

linear systems per timestep. One of the algorithms is fully decoupled in the sense that each timestep consists of the sequential computation of the magnetization and afterwards the magnetic and electric eld. Under some mild assumptions on the e ective eld, we show

that both algorithms converge towards weak solutions of the MLLG system. Numerical experiments for a micromagnetic benchmark problem demonstrate the performance of the proposed algorithms.

Maxwell-LLG, linear scheme, ferromagnetism, convergence.

http://www.asc.tuwien.ac.at/preprint/2013/asc09x2013.pdf

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