Superconducting junctions and method of making same
US5219826A · kind A · utility
72Cited by
8References
12Claims
0Family size
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Inventor
Key dates
| Filing date | Aug 20, 1990 |
| Grant date | Jun 15, 1993 |
| Priority date | — |
| Expiry date | Aug 20, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S505/728
Abstract
A superconducting Josephson junction is created in high T.sub.c superconducting film, with a bridge connecting two superconducting banks, by subjecting the bridge to a tunneling electron current from a sharp electrode close to the bridge. The tunneling current alters the structure over atomic dimensions to create a weak link of length comparable to high T.sub.c coherence lengths so as to permit phase coherent Cooper pair current flow across the weak link.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.