Year: 1997
Type: article
Abstract: The dynamics of dislocations in a two-dimensional vortex lattice is studied in the presence of a pinning potential and a transport current. We present a nonequilibrium mechanism that generates an average glide velocity ${V}_{d}$ of the dislocation with respect to the moving vortex lattice. It is found to decay like ${V}_{d}\ensuremath{\sim}{v}^{\ensuremath{-}4}$ for large lattice velocity $v$. From this result a crossover between a regime where the dislocations are pinned by the impurities and a regime where dislocations move coherently with the vortex lattice is established.
Authors: Stefan Scheidl, Valerii M. Vinokur
Institution: University of Cologne
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2053180769