Published June 1, 1989
| Version v1
Journal article
Tunneling α2F(ω) in thin-film Nb as a function of thickness
- 1. Department of Applied Physics, Stanford University, Stanford, California 94305
- 2. Department of Physics, Westmont College, Santa Barbara, California 93108 (USA)
Description
We have performed electron tunneling measurements on thin niobium films made by electron beam evaporation. From these data tunneling α2F(ω), the electron-phonon spectral function has been generated as a function of thickness from 900 A down to 30 A. Despite the onset of some phonon mode softening as sample thickness gets thinner, the electron-phonon coupling constant λ decreases from 0.9 at 900 A to 0.74 at 30 A consistent with the drop in the transition temperature
Additional details
Publishing Information
- Journal Title
- Physical Review, B: Condensed Matter
- Journal Volume
- 39
- Journal Issue
- 16
- Series
- Phys. Rev., B: Condens. Matter.
- Journal Page Range
- 12257-12259
- ISSN
- 0163-1829
- CODEN
- PRBMD
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 20083647
- Subject category
- S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ELECTRON BEAMS; ELECTRON-PHONON COUPLING; ELECTRONS; EVAPORATION; NIOBIUM; SUPERCONDUCTIVITY; THIN FILMS; TRANSITION TEMPERATURE; TUNNEL EFFECT
- Descriptors DEC
- BEAMS; COUPLING; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; FILMS; LEPTON BEAMS; LEPTONS; METALS; PARTICLE BEAMS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENTS