Existence and the stability of minimizers in ferromagnetic nanowires

Davit Harutyunyan

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arXiv · 1207.5195

Existence and the stability of minimizers in ferromagnetic nanowires

Davit Harutyunyan

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Abstract

We study static 180 degree domain walls in infinite magnetic wires with bounded, $C^1$ and rotationally symmetric cross sections. We prove an existence of global minimizers for the energy of micromagnetics for any bounded $C^1$ cross sections. Under some asymmetry of cross sections we prove a stability result for the minimizers, namely, we show that vectors of micromagnetics having an energy close to the minimal one, must be $H^1$ close to a minimizer of the limiting energy up to a rotation and a translation.

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Davit Harutyunyan. 2012-07-22. Existence and the stability of minimizers in ferromagnetic nanowires. https://arxiv.org/abs/1207.5195

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