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MLC

Seminar

Domain wall motion in magnetic nanowires: an asymptotic approach

Lund, R (Bristol)
Tuesday 21 May 2013, 14:10-14:30

Seminar Room 1, Newton Institute

Abstract

We develop a systematic asymptotic description of domain wall motion in a magnetic nanowire. The Landau--Lifshitz--Gilbert equation is linearized about a static solution and the magnetization dynamics investigated via a perturbation expansion. We compute leading order behaviour, propagation velocities, and first order corrections of both travelling waves and oscillatory solutions, and find bifurcation points between these two types of solutions.

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