Fundamental Processes in Superconducting Weak Links
Abstract
The work accomplished under this contract largely concerns the properties of superconducting weak links, in the form of either small area oxide-barrier tunnel junctions or of SNS weak links, both of which form Josephson junctions. Two reports concern the response of tunnel junctions to far-infrared radiation, 22 elucidating the response under conditions suitable for mixer and detector applications, and 25 identifying the regimes in which chaotic noise makes the driven junction unusable for applications. The second two reports concern the static properties of junctions: 26 dealing with the effect of geometric disorder in large arrays of Josephson junctions, and 27 elucidating the properties of oxide barrier junctions that are so small that the charging energy of a single electron dominates the behavior, causing quantum effects which greatly modify the usual semi-classical Josephson junction properties. Work on high temperature superconductivity was also initiated. A. Far-Infrared Response and Chaos in Small-Area Tunnel Junctions; B. Josephson Junction Arrays with Positional Disorder; C. Novel Quantum Phenomena and Charging Effects in Very Small Tunnel Junctions; and D. High Temperature Superconductivity.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 31, 1988
- Accession Number
- ADA220151
Entities
People
- M. Tinkham
Organizations
- Harvard College