Published August 18, 1986
| Version v1
Journal article
Superconducting tunneling in ultrathin Nb films
Creators
- 1. Department of Applied Physics, Stanford University, Stanford, California 94305
Description
Good-quality tunnel junctions have been fabricated on ultrathin films of Nb whose thicknesses ranged from 9 to 900 A. As the film thickness is reduced below 50 A, T/sub c/ decreases, 2Δ/kT/sub c/ increases, and mode softening is observed through d2V/dI2 measurements. These results imply that as the thickness decreases below 50 A the electron-phonon constant, λ, becomes larger than expected from the drop in T/sub c/
Additional details
Publishing Information
- Journal Title
- Phys. Rev. Lett.
- Journal Volume
- 57
- Journal Issue
- 7
- Series
- Phys. Rev. Lett.
- Journal Page Range
- 901-904
- ISSN
- 0031-9007
- CODEN
- PRLTA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 18017822
- Subject category
- S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ELECTRIC CONDUCTIVITY; ELECTRON-PHONON COUPLING; EXPERIMENTAL DATA; FABRICATION; NIOBIUM; SUPERCONDUCTING FILMS; THICKNESS; TRANSITION TEMPERATURE; TUNNEL DIODES; TUNNEL EFFECT
- Descriptors DEC
- COUPLING; DATA; DIMENSIONS; ELECTRICAL PROPERTIES; ELEMENTS; FILMS; INFORMATION; METALS; NUMERICAL DATA; PHYSICAL PROPERTIES; SEMICONDUCTOR DEVICES; SEMICONDUCTOR DIODES; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENTS