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Dinis Vizcaíno, Luis Ignacio and González Herrera, Elvira María and Anguita, J. V. and Parrondo, J. M. R. and Vicent López, José Luis (2007) Current reversal in collective ratchets induced by lattice instability. Physical review B, 76 (21). ISSN 1098-0121
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Official URL: http://dx.doi.org/10.1103/PhysRevB.76.212507
Abstract
A collective mechanism for current reversal in superconducting vortex ratchets is proposed. The mechanism is based on a two-dimensional instability of the ground state (T=0) of the system. We illustrate our results with numerical simulations and experiments in Nb superconducting films fabricated on top of Si substrates with artificially induced asymmetric pinning centers.
Item Type: | Article |
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Additional Information: | ©2007 The American Physical Society. |
Uncontrolled Keywords: | Superconducting Films; Brownian Motors; Molecular Motors; Regular Array; Magnetic Dots; Vortex; Motion |
Subjects: | Sciences > Physics > Materials Sciences > Physics > Solid state physics Sciences > Physics > Nuclear physics |
ID Code: | 43215 |
Deposited On: | 21 Jun 2017 16:35 |
Last Modified: | 10 Dec 2018 14:58 |
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