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Domain wall motion in magnetic nanowires: an asymptotic approach

Presented by: 
R Lund [Bristol]
Date: 
Tuesday 21st May 2013 - 14:10 to 14:30
Venue: 
INI Seminar Room 1
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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University of Cambridge Research Councils UK
    Clay Mathematics Institute London Mathematical Society NM Rothschild and Sons