Rocking ratchets in 2D Josephson networks: collective effects and current reversal
Phys. Rev. Lett. 98, 047006 (2007) 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...
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| Format | Journal Article |
| Language | English |
| Published |
15.12.2006
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| Online Access | Get full text |
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| Abstract | Phys. Rev. Lett. 98, 047006 (2007) 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
($f$=$Ha^2 / \Phi_0$), in good agreement with recent experiments by Shal\'om
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. |
|---|---|
| AbstractList | Phys. Rev. Lett. 98, 047006 (2007) 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
($f$=$Ha^2 / \Phi_0$), in good agreement with recent experiments by Shal\'om
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. |
| Author | Marconi, Verónica I |
| Author_xml | – sequence: 1 givenname: Verónica I surname: Marconi fullname: Marconi, Verónica I |
| BackLink | https://doi.org/10.1103/PhysRevLett.98.047006$$DView published paper (Access to full text may be restricted) https://doi.org/10.48550/arXiv.cond-mat/0612390$$DView paper in arXiv |
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| Snippet | Phys. Rev. Lett. 98, 047006 (2007) A detailed numerical study on the directed motion of ac-driven vortices and
antivortices in 2D Josephson junction arrays... |
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| SubjectTerms | Physics - Superconductivity |
| Title | Rocking ratchets in 2D Josephson networks: collective effects and current reversal |
| URI | https://arxiv.org/abs/cond-mat/0612390 |
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