Mode-locking in ac-driven vortex lattices with random pinning
超导电性
2007-05-23 v1 软凝聚态物质
摘要
We find mode-locking steps in simulated current-voltage characteristics of ac-driven vortex lattices with {\it random} pinning. For low frequencies there is mode-locking above a finite ac force amplitude, while for large frequencies there is mode-locking for any small ac force. This is correlated with the nature of temporal order in the different regimes in the absence of ac drive. The mode-locked state is a frozen solid pinned in the moving reference of frame, and the depinning from the step shows plastic flow and hysteresis.
引用
@article{arxiv.cond-mat/0012368,
title = {Mode-locking in ac-driven vortex lattices with random pinning},
author = {Alejandro B. Kolton and Daniel Dominguez and Niels Gronbech-Jensen},
journal= {arXiv preprint arXiv:cond-mat/0012368},
year = {2007}
}
备注
4 pages, 4 figures