Mode-locking in driven vortex lattices with transverse ac-drive and random pinning

Details Mode-locking in driven vortex lattices with transverse ac-drive and random pinning Mode-locking in driven vortex lattices with transverse ac-drive and random pinning

2001-12-17

arxiv.org/abs/cond-mat/0112318v1

Phys. Rev. B 65, 184508 (2002)

Physics

Condensed Matter

Superconductivity

4 pages, 4 figures, .tar.gz file

Scientific paper

10.1103/PhysRevB.65.184508

We find mode-locking steps in simulated current-voltage characteristics of driven vortex lattices with {\it random} pinning when an applied ac-current is {\it perpendicular} to the dc-current. For low frequencies there is mode-locking only above a non-zero threshold ac force amplitude, while for large frequencies there is mode-locking for any small ac force. This is consistent with the nature of {\it transverse} temporal order in the different regimes in the absence of an applied ac-drive. For large frequencies the magnitude of the fundamental mode-locked step depends linearly with the ac force amplitude.

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