Current-driven and field-driven domain walls at nonzero temperature
Other Condensed Matter
2013-05-29 v1
Abstract
We present a model for the dynamics of current- and field-driven domain-wall lines at nonzero temperature. We compute thermally-averaged drift velocities from the Fokker-Planck equation that describes the nonzero-temperature dynamics of the domain wall. As special limits of this general description, we describe rigid domain walls as well as vortex domain walls. In these limits, we determine also depinning times of the domain wall from an extrinsic pinning potential. We compare our theory with previous theoretical and experimental work.
Keywords
Cite
@article{arxiv.0903.5159,
title = {Current-driven and field-driven domain walls at nonzero temperature},
author = {M. E. Lucassen and H. J. van Driel and C. Morais Smith and R. A. Duine},
journal= {arXiv preprint arXiv:0903.5159},
year = {2013}
}