Energy gap suppression and instability in superconducting tin films under strong quasiparticle injection

Journal Article · Mon Oct 01 04:00:00 EDT 1979 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00114057· OSTI ID:5872898

Rajeevakumar, T V; Chang, J; Chen, J T

Double tunnel junctions have been used to investigate the properties of superconducting Sn films under quasiparticle injection. At high injection level, the gap is discontinuously suppressed to zero from a finite value. This instability for ambient T/sub a/>T/sub lambda/, the lambda temperature of liquid helium, results from the film current exceeding its critical value. Below the instability the general behavior of the gap suppression is shown to be consistent with the modified heating model.

• Research Organization: Department of Physics, Wayne State University, Detroit, Michigan
• OSTI ID: 5872898
• Journal Information: J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 37:1; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
CRITICAL CURRENT
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
ELEMENTS
ENERGY GAP
FILMS
INSTABILITY
METALS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
QUASI PARTICLES
SUPERCONDUCTING FILMS
SUPERCONDUCTING JUNCTIONS
SUPERCONDUCTIVITY
TIN
TUNNEL EFFECT