Experimental Studies of Superconducting Weak Links.
Abstract
The principal contribution of this thesis has been to show that superconducting weak-link current-phase relations are generally not the simple sinusoids predicted by Josephson for a tunnel junction; instead it has been shown that there is a great variety of current-phase relations to be found in different types of weak links. The first measurements were made on an oxidized niobium point contact. The author found a sinusoidal current-phase relation. Measured fluxoid transition distributions were in excellent agreement with the theoretical predictions of Kurkijarvi. In uniform thickness tin bridges the author found the first distinctly non-sinusoidal current-phase relations. Scribed indium bridges were also examined in which the electrodes are thicker than the bridges.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1976
- Accession Number
- ADA020101
Entities
People
- Lawrence D. Jackel
Organizations
- Cornell University