Year: 2007
Type: article
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.
Source: Physical Review B
Authors: L. Dinis, E. M. González, J. V. Anguita, J. M. R. Parrondo, J. L. Vicent
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2108738986