RT Journal Article
T1 Current reversal in collective ratchets induced by lattice instability
A1 Dinis Vizcaíno, Luis Ignacio
A1 González Herrera, Elvira María
A1 Anguita, J. V.
A1 Rodríguez Parrondo, Juan Manuel
A1 Vicent López, José Luis
AB 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.
PB American Physical Society
SN 1098-0121
YR 2007
FD 2007-12
LK https://hdl.handle.net/20.500.14352/52060
UL https://hdl.handle.net/20.500.14352/52060
LA eng
NO ©2007 The American Physical Society.We acknowledge support by Spanish Ministerio de Educación y Ciencia NAN04- 09087, FIS05-07392, MAT05- 23924E, MOSAICO, CAM S-0505/ESP/0337, and UCMSantander. Computer simulations were performed at “Cluster de cálculo para Técnicas Físicas” of UCM, funded in part by the UE-FEDER program and in part by UCM and in the “Aula Sun Microsystems” at UCM.
NO Spanish Ministerio de Educación y Ciencia
NO UCM-Santander.
NO UE-FEDER
NO UCM
NO CAM
DS Docta Complutense
RD 9 may 2025