Fluctuation resistance of Josephson junctions
The influence of superconducting fluctuations on the single-particle current in various types of tunnel junctions is considered. It is shown that there are two different fluctuation contributions to the current. The first is due to the fluctuations of the density of states in the superconductors that make up the junction, and the second to the interaction of the fluctuations through the barrier. Both contributions decrease the current flowing through a Josephson junction, but manifest themselves at different voltage scales. The type of the extrema that appear in the dependence of the differential resistance on the voltage is determined by the sign of the electron-electron interaction constant in the metals that make up the junction.
- Research Organization:
- Moscow Institute of Steel and Alloys
- OSTI ID:
- 5385685
- Journal Information:
- Sov. Phys. - JETP (Engl. Transl.); (United States), Journal Name: Sov. Phys. - JETP (Engl. Transl.); (United States) Vol. 57:5; ISSN SPHJA
- Country of Publication:
- United States
- Language:
- English
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Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CURRENTS
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
ELEMENTS
FLUCTUATIONS
JOSEPHSON JUNCTIONS
JUNCTIONS
METALS
SUPERCONDUCTING JUNCTIONS
VARIATIONS