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Experimental ratchet effect in superconducting films with periodic arrays of asymmetric potentials

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Villegas, J. E. y González Herrera, Elvira María y Gonzalez, M. P. y Anguita, J. V. y Vicent López, José Luis (2005) Experimental ratchet effect in superconducting films with periodic arrays of asymmetric potentials. Physical review B, 71 (2). ISSN 1098-0121

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URL Oficial: http://dx.doi.org/10.1103/PhysRevB.71.024519


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Resumen

A vortex lattice ratchet effect has been investigated in Nb films grown on arrays of nanometric Ni triangles, which induce periodic asymmetric pinning potentials. The vortex lattice motion yields a net dc voltage when an ac driving current is applied to the sample and the vortex lattice moves through the field of asymmetric potentials. This ratchet effect is studied taking into account the array geometry, the temperature, the number of vortices per unit cell of the array, and the applied ac currents.


Tipo de documento:Artículo
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©2005 The American Physical Society.
We want to thank Spanish CICYT MAT2002-04543 and R. Areces Foundation. M.G. wants to thank Ministerio de Educación y Ciencia for a Ramon y Cajal contract.

Palabras clave:Magnetic-Flux Quanta; Nb Films; Dots; Defects; Motors
Materias:Ciencias > Física > Física de materiales
Ciencias > Física > Física del estado sólido
Código ID:43858
Depositado:19 Jul 2017 15:12
Última Modificación:19 Jul 2017 15:12

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