Vortex dynamics in disordered type-II superconductors
凝聚态物理
2009-10-28 v1
摘要
A field theoretical method is developed which permits us to study the dynamics of vortices in disordered environments. In particular, we obtain a self-consistent system of equations for disorder averaged quantities. Making use of a Hartree-type approximation, we calculate the current-voltage (I-V) characteristics in the flux flow regime. In order to probe incipient melting of the vortex lattice we propose an experiment where interference steps in the I-V characteristics are observed, which arise when a small ac field is superimposed on the constant voltage.
引用
@article{arxiv.cond-mat/9505103,
title = {Vortex dynamics in disordered type-II superconductors},
author = {J. Müllers and A. Schmid},
journal= {arXiv preprint arXiv:cond-mat/9505103},
year = {2009}
}
备注
13 pages (REVTeX), uuencoded compressed tar file with 1 postscript figure