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arXiv · 0709.2885

Lattice effects and current reversal in superconducting ratchets

L. Dinis·E. M. Gonzalez·J. V. Anguita·J. M. R. Parrondo·J. L. Vicent
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Abstract

Competition between the vortex lattice and a lattice of asymmetric artificial defects is shown to play a crucial role in ratchet experiments in superconducting films. We present a novel and collective mechanism for current reversal based on a reconfiguration of the vortex lattice. In contrast to previous models of vortex current reversal, the mechanism is based on the global response of the vortex lattice to external forces.

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L. Dinis, E. M. Gonzalez, J. V. Anguita, J. M. R. Parrondo, J. L. Vicent. 2007-09-18. Lattice effects and current reversal in superconducting ratchets. https://doi.org/10.1088/1367-2630%2F9%2F10%2F366

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