Rectification and Flux Reversals for Vortices Interacting with Triangular Traps

Details Rectification and Flux Reversals for Vortices Interacting with Triangular Traps Rectification and Flux Reversals for Vortices Interacting with Triangular Traps

2004-01-02

arxiv.org/abs/cond-mat/0401016v1

Physica C 432, 125 (2005)

Physics

Condensed Matter

Superconductivity

4 pages, 4 postscript figures

Scientific paper

10.1016/j.physc.2005.07.017

We simulate vortices in superconductors interacting with two-dimensional arrays of triangular traps. We find that, upon application of an ac drive, a net dc flow can occur which shows current reversals with increasing ac drive amplitude for certain vortex densities, in agreement with recent experiments and theoretical predictions. We identify the vortex dynamics responsible for the different rectification regimes. We also predict the occurrence of a novel transverse rectification effect in which a dc flow appears that is transverse to the direction of the applied ac drive.

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