Theory of quasiparticle charge imbalance induced in a superconductor by a supercurrent in the presence of a thermal gradient

Journal Article · Mon Jan 14 00:00:00 EST 1980 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.44.106· OSTI ID:5551942

Clarke, J; Tinkham, M

The charge-imbalance voltage induced in a clean superconductor by a supercurrent density J/sub s/ in the presence of a temperature gradient delT is shown to be V=2..pi..v/sub F/llambda/sup 2/..delta.. (J/sub s/xdelT)/3c/sup 2/k/sub B/T/sup 2/ cosh/sup 2/(..delta../2k/sub B/T) g/sub N/S(1-Z), where v/sub F/, l, and lambda (T) are the Fermi velocity, mean free path, and penetration depth, g/sub N/S is the normalized tunnel conductance of the probe junction, and Z (..delta../T) is a known function. This result agrees well with the experiments of Clarke, Fjordboge, and Lindelof.

• Research Organization: Cavendish Laboratory, Cambridge CB3 0HE, United Kingdom
• OSTI ID: 5551942
• Journal Information: Phys. Rev. Lett.; (United States), Vol. 44:2
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
SUPERCONDUCTORS
CHARGE DISTRIBUTION
ELECTRIC POTENTIAL
BOLTZMANN EQUATION
ELECTRIC CURRENTS
ENERGY GAP
FERMI LEVEL
MEAN FREE PATH
TEMPERATURE GRADIENTS
CURRENTS
DIFFERENTIAL EQUATIONS
ENERGY LEVELS
EQUATIONS
656101* - Solid State Physics- Superconductivity- General Theory- (-1987)