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Título : Experimental ratchet effect in superconducting films with periodic arrays of asymmetric potentials
Autor : Villegas, J. E., González, E. M., González, M. P., Anguita, José Virgilio, Vicent, J. L.
Palabras clave : Ratchet effect
Asymmetric potentials
Fecha de publicación : 26-Jan-2005
Editor: American Physical Society
Citación : Physical Review B 71, 024519 (2005)
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.
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ISSN: 1098-0121
DOI: 10.1103/PhysRevB.71.024519
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