Experimental adiabatic vortex ratchet effect in Nb films with asymmetric pinning trap
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2006
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Indian Academy Sciences
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Abstract
Nb films grown on top of an array of asymmetric pinning centers show a vortex ratchet effect. A net flow of vortices is induced when the vortex lattice is driven by fluctuating forces on an array of pinning centers without reflection symmetry. This effect occurs in the adiabatic regime and it could be mimiced only by reversible DC driven forces.
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©Indian Academy Sciences.
10th International Vortex Workshop (10.Mumbai, India. 2005).
We want to thank Spanish Ministerio de Educacion y Ciencia for grants MAT2002- 04543 and MAT2002-12385-E and CAM GR/MAT/0617/2004. E M Gonzalez and N O Nunez want to thank Spanish Ministerio de Educacion y Ciencia for ramon y Cajal and Juan de la Cierva contracts respectively.