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- Publisher
- Springer Journals
- Copyright
- Copyright © 2012 by Springer Science+Business Media B.V.
- Subject
- Mathematics; Mechanics; Computer Science, general; Mathematics, general; Statistical Physics, Dynamical Systems and Complexity; Theoretical, Mathematical and Computational Physics
- ISSN
- 0167-8019
- eISSN
- 1572-9036
- DOI
- 10.1007/s10440-012-9733-z
- Publisher site
- See Article on Publisher Site
Abstract
The one-dimensional propagation of magnetic domain walls in ferromagnetic nanostrips is investigated in the framework of the extended Landau-Lifshitz-Gilbert equation which includes the effects of spin-polarized currents. The generalized model herein considered explicitly takes also into account two nonlinear mechanisms of dissipation, a rate-dependent viscous-like and a rate-independent dry-like, which are introduced for a better description of the relaxation processes in real samples. By adopting the traveling waves ansatz, we characterize the domain wall motion in two dynamical regimes, steady and precessional. The analytical results are also evaluated numerically in order to elucidate the corresponding physical implications.
Journal
Acta Applicandae Mathematicae – Springer Journals
Published: May 23, 2012