Rocking ratchets in 2D Josephson networks: collective effects and current reversal
| dc.creator | Marconi, Verónica I. | |
| dc.date | 2006-12-15 | |
| dc.date.accessioned | 2026-07-07T07:42:57Z | |
| dc.date.available | 2026-07-07T07:42:57Z | |
| dc.description | A detailed numerical study on the directed motion of ac-driven vortices and antivortices in 2D Josephson junction arrays (JJA) with an asymmetric periodic pinning potential is reported. Dc-voltage rectification shows a strong dependence on vortex density as well as an inversion of the vortex flow direction with ac amplitude for a wide range of vortex density around $f$=1/2 ($f$=$Ha^2 / Φ_0$), in good agreement with recent experiments by Shalóm and Pastoriza [Phys. Rev. Lett. {\bf 94}, 177001 (2005)]. The study of vortex structures, spatial and temporal correlations, and vortex-antivortex pairs formation gives insight into a purely collective mechanism behind the current reversal effect. | |
| dc.description | 4 pages, 5 figures. Accepted for publication in Phys. Rev. Lett | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0612390 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0612390 | |
| dc.identifier | Phys. Rev. Lett. 98, 047006 (2007) | |
| dc.identifier | doi:10.1103/PhysRevLett.98.047006 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/122642 | |
| dc.subject | Superconductivity | |
| dc.title | Rocking ratchets in 2D Josephson networks: collective effects and current reversal | |
| dc.type | text |