Vortex Plastic Motion in Twinned Superconductors
Materials Science
2009-10-28 v1 Superconductivity
Abstract
We present simulations, without electrodynamical assumptions, of , and , in hard superconductors, for a variety of twin-boundary pinning potential parameters, and for a range of values of the density and strength of the pinning sites. We numerically solve the overdamped equations of motion of up to 10^4 flux-gradient-driven vortices which can be temporarily trapped at pinning centers. These simulations relate macroscopic measurements (e.g., M(H), ``flame'' shaped profiles) with the underlying microscopic pinning landscape and the plastic dynamics of individual vortices.
Cite
@article{arxiv.cond-mat/9607182,
title = {Vortex Plastic Motion in Twinned Superconductors},
author = {J. Groth and C. Reichhardt and C. J. Olson and Stuart Field and Franco Nori},
journal= {arXiv preprint arXiv:cond-mat/9607182},
year = {2009}
}