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IOP Publishing, New Journal of Physics, 10(9), p. 366-366, 2007

DOI: 10.1088/1367-2630/9/10/366

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Lattice effects and current reversal in superconducting ratchets

Journal article published in 2007 by L. Dinis, E. M. Gonzalez, J. V. Anguita, J. M. R. Parrondo ORCID, J. L. Vicent
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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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. ; Comment: 12 pages, 7 figures