%0 Journal Article %A Dinis Vizcaíno, Luis Ignacio %A González Herrera, Elvira María %A Vicent López, José Luis %A Rodríguez Parrondo, Juan Manuel %A Anguita, J. V. %T Lattice effects and current reversal in superconducting ratchets %D 2007 %@ 1367-2630 %U https://hdl.handle.net/20.500.14352/52061 %X Competition between the vortex lattice and a lattice of asymmetric artificial defects is shown to play a crucial role in ratchet experiments in superconducting films. We present a novel and collective mechanism for current reversal based on a reconfiguration of the vortex lattice. In contrast to previous models of vortex current reversal, the mechanism is based on the global response of the vortex lattice to external forces %~