Long-range Josephson effect in mesoscopic T-shaped superconductor–normal-metal–superconductor junctions

摘要: It is found that the dc Josephson current in a ballistic superconductor{endash}normal-metal{endash}superconductor junction connected to an electron reservoir does not decay with length of if voltage applied between and junction. At finite temperature, this nonequilibrium proportional saturates at eV{gt}{Delta} level typical for critical short junctions. In asymmetric junctions current-phase dependence {pi} periodic. {copyright} {ital 1997} The American Physical Society}