Current-spin coupling for ferromagnetic domain walls in fine wires
Strongly Correlated Electrons
2009-11-10 v1 Materials Science
Abstract
The coupling between a current and a domain wall is examined. In the presence of a finite current and the absence of a potential which breaks the translational symmetry, there is a perfect transfer of angular momentum from the conduction electrons to the wall. As a result, the ground state is in uniform motion. This remains the case when relaxation is accounted for. This is described by, appropriately modified, Landau-Lifshitz-Gilbert equations.
Cite
@article{arxiv.cond-mat/0410035,
title = {Current-spin coupling for ferromagnetic domain walls in fine wires},
author = {S. E. Barnes and S. Maekawa},
journal= {arXiv preprint arXiv:cond-mat/0410035},
year = {2009}
}
Comments
4 pqges, no figures