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Quasiparticle-injection-induced superconducting weak links

Thesis/Dissertation ·
OSTI ID:5017525
Superconducting weak links are studied in which the weak region is created by locally driving the superconductor out of equilibrium using an independent source of quasiparticles. The characteristics of these weak links can be varied electrically or optically at any temperature below T/sub c/. The Josephson coupling is enhanced by varying microbridge material and injection geometry. A simple model which describes the dependence of weak-link critical current, spatial quasiparticle distribution, and energy gap suppression on quasiparticle-injection rate is presented.
Research Organization:
Pennsylvania Univ., Philadelphia (USA)
OSTI ID:
5017525
Country of Publication:
United States
Language:
English

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Related Subjects

656100* -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRITICAL CURRENT
CURRENTS
DISTRIBUTION
ELECTRIC CURRENTS
ENERGY GAP
EQUILIBRIUM
JOSEPHSON JUNCTIONS
JUNCTIONS
MATHEMATICAL MODELS
QUASI PARTICLES
SPATIAL DISTRIBUTION
SUPERCONDUCTING JUNCTIONS
SUPERCONDUCTORS