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Experimental vortex ratchet effect in nanostructured superconductors

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Villegas, J. E. and González Herrera, Elvira María and González, M. P. and Nuñez, N. O. and Anguita, J. V. and 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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Official URL: http://dx.doi.org/10.1063/1.2354978


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Abstract

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.


Item Type:Book Section
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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.

Uncontrolled Keywords:Rectifier; Quanta
Subjects:Sciences > Physics > Materials
Sciences > Physics > Solid state physics
ID Code:43813
Deposited On:18 Jul 2017 13:58
Last Modified:18 Jul 2017 13:58

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