Published October 27, 1986
| Version v1
Journal article
Breakdown of Eliashberg theory for two-dimensional superconductivity in the presence of disorder
- 1. AT and T Bell Laboratories, Murray Hill, New Jersey 07974
Description
We have performed tunneling measurements on ultrathin, homogeneous, strong-coupled superconducting Pb films in the regime where T/sub c/ varies with sheet resistance. The energy gap Δ and the strong-coupling corrections to the density of states have been measured as functions of the sheet resistance R0. We conclude that the standard picture of enhanced Coulomb repulsion with increasing sheet resistance is too naive and that, in the presence of disorder, an analysis more sophisticated than Eliashberg theory is necessary
Additional details
Publishing Information
- Journal Title
- Phys. Rev. Lett.
- Journal Volume
- 57
- Journal Issue
- 17
- Series
- Phys. Rev. Lett.
- Journal Page Range
- 2195-2198
- ISSN
- 0031-9007
- CODEN
- PRLTA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 18040414
- Subject category
- S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- CORRECTIONS; COULOMB FIELD; ELECTRIC CONDUCTIVITY; ENERGY GAP; ENERGY-LEVEL DENSITY; EXPERIMENTAL DATA; GORKOV-ELIASHBERG THEORY; LEAD; RANDOMNESS; SUPERCONDUCTING FILMS; SUPERCONDUCTIVITY; TRANSITION TEMPERATURE; TUNNEL EFFECT; TWO-DIMENSIONAL CALCULATIONS
- Descriptors DEC
- DATA; ELECTRIC FIELDS; ELECTRICAL PROPERTIES; ELEMENTS; FILMS; INFORMATION; METALS; NUMERICAL DATA; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES