Growth of a vortex polycrystal in type II superconductors
Statistical Mechanics
2009-11-10 v1 Superconductivity
Abstract
We discuss the formation of a vortex polycrystal in type II superconductors from the competition between pinning and elastic forces. We compute the elastic energy of a deformed grain boundary, that is strongly non-local, and obtain the depinning stress for weak and strong pinning. Our estimates for the grain size dependence on the magnetic field strength are in good agreement with previous experiments on NbMo. Finally, we discuss the effect of thermal noise on grain growth.
Cite
@article{arxiv.cond-mat/0312382,
title = {Growth of a vortex polycrystal in type II superconductors},
author = {Paolo Moretti and M. -Carmen Miguel and Michael Zaiser and Stefano Zapperi},
journal= {arXiv preprint arXiv:cond-mat/0312382},
year = {2009}
}
Comments
4 pages, 2 figures