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Experimental vortex ratchet effect in nanostructured superconductors



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Villegas, J. E. y González Herrera, Elvira María y González, M. P. y Nuñez, N. O. y Anguita, J. V. y Vicent López, José Luis (2006) Experimental vortex ratchet effect in nanostructured superconductors. In Low temperature physics, Pts A and B. AIP Conference Proceedings (850 AB). Amer Inst Physics. ISBN 0-7354-0347-3

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URL Oficial: http://dx.doi.org/10.1063/1.2354978

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Superconducting Nb thin films were grown on different arrays of triangle-shape metallic islands. The vortex lattice dynamics could be strongly modified by these asymmetric vortex traps. These asymmetric pinning potentials lead to a rectification effect on the vortex motion: Injecting an ac supercurrent on the sample yields a net dc vortex flow. This vortex ratchet ffect is adiabatic and reversible: The effect is frequency independent and the polarity of the dc voltage output could be tuned by the applied magnetic fields and the input ac currents.

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©Amer Inst Physics.
ISSN: 0094-243X
International Conference on Low Temperature Physics (LT24) (24. 2005. Orlando).
We want to thanks support from Spanish grants MAT2002-04543, NAN2004-09087, MAT2002-12385-E, CAM under grant 6R/MAT/0617/2002.Two of us, EMG and NON, want to thank Spanish Ministerio de Educacion y Ciencia for a Ramon y Cajal and Juan de la Cierva contracts respectively.

Palabras clave:Rectifier; Quanta
Materias:Ciencias > Física > Física de materiales
Ciencias > Física > Física del estado sólido
Código ID:43813
Depositado:18 Jul 2017 13:58
Última Modificación:18 Jul 2017 13:58

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