학술논문

Nonlinear Stability of Static N\'eel Walls in Ferromagnetic Thin Films
Document Type
Working Paper
Source
Subject
Mathematics - Analysis of PDEs
Mathematics - Spectral Theory
35B35, 35B40, 35S10
Language
Abstract
In this paper, the nonlinear (orbital) stability of static 180^\circ N\'eel walls in ferromagnetic films, under the reduced wave-type dynamics for the in-plane magnetization proposed by Capella, Melcher and Otto [CMO07], is established. It is proved that the spectrum of the linearized operator around the static N\'eel wall lies in the stable complex half plane with non-positive real part. This information is used to show that small perturbations of the static N\'eel wall converge to a translated orbit belonging to the manifold generated by the static wall.
Comment: 35 pages