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Lattice effects and current reversal in superconducting ratchets

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Dinis Vizcaíno, Luis Ignacio y González Herrera, Elvira María y Anguita, J. V. y Parrondo, J. M. R. y Vicent López, José Luis (2007) Lattice effects and current reversal in superconducting ratchets. New journal of physics, 9 . ISSN 1367-2630

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URL Oficial: http://dx.doi.org/10.1088/1367-2630/9/10/366


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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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© IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
We acknowledge funding support by Spanish Ministerio de Educación y Ciencia, grants NAN04-09087, FIS05-07392, MAT05-23924E, and MOSAICO; CAM grant S-0505/ESP/0337, and UCM-Santander. Also, computer simulations of this work were performed partly at the ‘Cluster de cálculo para Técnicas Físicas’ of UCM, funded in part by UE-FEDER program and in part by UCM and in the ‘Aula Sun Microsystems’ at UCM.

Palabras clave:Molecular Motors; Brownian Motors; Magnetic Dots; Vortex; Arrays; Rectification; Motion
Materias:Ciencias > Física > Física de materiales
Ciencias > Física > Física del estado sólido
Ciencias > Física > Física nuclear
Código ID:43217
Depositado:18 Jul 2017 13:54
Última Modificación:10 Dic 2018 14:58

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