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Impact of the transport supercurrent on the Josephson effect | | S.N. Shevchenko
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30 Apr 2004 | | Subject: | Superconductivity | cond-mat.supr-con | | Abstract: | We study the weak link between current-carrying superconductors, both conventional and d-wave. The state of the system is controlled by two parameters: the order parameter phase difference $phi$ and the superfluid velocity $v_{s}$, which parameterizes the parallel to the boundary transport supercurrent which is injected externally. The low-temperature current-phase relations are derived. We consider two models of weak links: a constriction between two conventional superconductors and a plane boundary between two differently orientated d-wave superconductors. We show that for some relation between $phi $ and $v_{s}$ quasiparticles create the current along the boundary which flows in the direction opposite to the transport supercurrent. | | Source: | arXiv, cond-mat/0404738 | | Services: | Forum | Review | PDF | Favorites | |
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