Investigation of the Superconducting Energy Gap Behavior of Single Crystal Rhenium by Tunneling.
Abstract
A 15.7% anisotropy in the superconducting energy gap has been measured by electron tunneling into single crystals of rhenium, using thin carbon films as the tunneling barrier to form Re-C-In sandwiches. The energy gap behavior with temperature is BCS-like. The anisotropy agrees with ultrasonic measurements of other hcp metals and suggests that phonon dispersion plays a dominating role in the gap behavior. However, gap values determined from multiparticle tunneling data exhibited reduced gap magnitudes, and a dissimilar crystallographic behavior. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 03, 1971
- Accession Number
- AD0718415
Entities
People
- Margaret L. A. Macvicar
- Robert Marc Rose
- Shin I. Ochiai
Organizations
- Massachusetts Institute of Technology