Villegas, J. E.González Herrera, Elvira MaríaGonzález, M. P.Nuñez, N. O.Anguita, J. V.Vicent López, José Luis2023-06-202023-06-2020060-7354-0347-310.1063/1.2354978https://hdl.handle.net/20.500.14352/53561©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.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.engbook parthttp://dx.doi.org/10.1063/1.2354978http://aip.scitation.orgopen access538.9RectifierQuantaFísica de materialesFísica del estado sólido2211 Física del Estado Sólido