Published October 6, 1980
| Version v1
Journal article
Possible mechanism of superconductivity in metal-semiconductor eutectic alloys
Creators
- 1. Department of Physics, University of Houston, Houston, Texas 77004
Description
The effect due to the tunneling of conduction electrons into the negative-U centers at the disordered metal-semiconductor interfaces on the superconductivity of metal-semiconductor eutectic alloys is considered. Gorkov's formalism is used to calculate T/sub c/ for (i) n/sub I/<<1 and lambdanot =0, (ii) lambda=0. Where n/sub I/ is the concentration of the pairing centers and lambda is the phonon-mediated electron-electron interaction in BCS theory. Our results can qualitatively explain the increase of T/sub c/ in Al-Si, Al-Ge, and Be-Si eutectic alloys
Additional details
Publishing Information
- Journal Title
- Phys. Rev. Lett.
- Journal Volume
- 45
- Journal Issue
- 14
- Series
- Phys. Rev. Lett.
- Journal Page Range
- 1213-1216
- ISSN
- 0031-9007
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 12586956
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- ALUMINIUM ALLOYS; BERYLLIUM ALLOYS; ELECTRONS; EUTECTICS; GERMANIUM ALLOYS; GORKOV-ELIASHBERG THEORY; HAMILTONIANS; INTERFACES; METALS; SEMICONDUCTOR MATERIALS; SILICON ALLOYS; SUPERCONDUCTIVITY; TRANSITION TEMPERATURE; TUNNEL EFFECT
- Descriptors DEC
- ALLOYS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; LEPTONS; MATHEMATICAL OPERATORS; PHYSICAL PROPERTIES; QUANTUM OPERATORS; THERMODYNAMIC PROPERTIES