Viscoelastic Depinning of Driven Systems: Mean-Field Plastic Scallops
Disordered Systems and Neural Networks
2009-10-31 v2 chao-dyn
Superconductivity
Chaotic Dynamics
Abstract
We have investigated the mean field dynamics of an overdamped viscoelastic medium driven through quenched disorder. The model introduced incorporates coexistence of pinned and sliding degrees of freedom and can exhibit continuous elastic depinning or first order hysteretic depinning. Numerical simulations indicate mean field instabilities that correspond to macroscopic stick-slip events and lead to premature switching. The model is relevant for the dynamics of driven vortex arrays in superconductors and other extended disordered systems.
Keywords
Cite
@article{arxiv.cond-mat/9912461,
title = {Viscoelastic Depinning of Driven Systems: Mean-Field Plastic Scallops},
author = {M. Cristina Marchetti and A. Alan Middleton and Thomas Prellberg},
journal= {arXiv preprint arXiv:cond-mat/9912461},
year = {2009}
}
Comments
4 pages, 2 figures