Dynamical Phases of Driven Vortices Interacting with Periodic Pinning
Superconductivity
2009-10-31 v1
Abstract
The finite temperature dynamical phases of vortices in films driven by a uniform force and interacting with the periodic pinning potential of a square lattice of columnar defects are investigated by Langevin dynamics simulations of a London model. Vortices driven along the [0,1] direction and at densities for which there are more vortices than columnar defects () are considered. At low temperatures, two new dynamical phases, elastic flow and plastic flow, and a sharp transition between them are identified and characterized according to the behavior of the vortex spatial order, velocity distribution and frequency-dependent velocity correlation
Cite
@article{arxiv.cond-mat/0010149,
title = {Dynamical Phases of Driven Vortices Interacting with Periodic Pinning},
author = {Gilson Carneiro},
journal= {arXiv preprint arXiv:cond-mat/0010149},
year = {2009}
}
Comments
4 pages with 4 figures. To be published in Phys. Rev. B Rapid Communications