Josephson junctions with a continually graded barrier
US6818918B2 · kind B2 · utility
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9References
16Claims
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Key dates
| Filing date | Nov 5, 2001 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | Nov 5, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N60/124
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A Josephson junction includes first and second electrodes, each of which is formed of superconductive material. The first electrode has a first electrode face. A barrier of the junction extends from the first electrode to the second electrode. The barrier has a first barrier face opposing and adjoining the first electrode face. The barrier is formed of non-superconductive barrier material and superconductive barrier material. A concentration of the superconductive barrier material is greater than zero at the first barrier face, whereby the first barrier face is formed at least partially of the superconductive barrier material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.