Long-range Josephson effect in mesoscopic T-shaped superconductor{endash}normal-metal{endash}superconductor junctions

Journal Article · Mon Sep 01 00:00:00 EDT 1997 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.56.R5763· OSTI ID:542263

Samuelsson, P ^[1]; Shumeiko, V S ^[1]; Wendin, G ^[1]

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1. Department of Microelectronics and Nanoscience, Chalmers University of Technology and Goeteborg University, S-41296 Goeteborg (Sweden)

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 the length of the junction if voltage is applied between the reservoir and the junction. At finite temperature, this nonequilibrium Josephson current is proportional to the applied voltage and saturates at eV{gt}{Delta} at a level typical for the critical current of short junctions. In asymmetric junctions the current-phase dependence is {pi} periodic. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 542263
• Journal Information: Physical Review, B: Condensed Matter, Vol. 56, Issue 10; Other Information: PBD: Sep 1997
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
SUPERCONDUCTING JUNCTIONS
JOSEPHSON EFFECT
CRITICAL CURRENT
QUASI PARTICLES
INTERFERENCE
WAVE FUNCTIONS