Superconductivity device comprising a phononic crystal
US11424400B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2019 |
| Grant date | Aug 23, 2022 |
| Priority date | — |
| Expiry date | May 11, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N60/83
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention is directed to a device and method to engineer the superconducting transition width by suppressing the phonon populations responsible for the Cooper-pair decoherence below the superconducting transition temperature via phononic bandgap engineering. The device uses phononic crystals to engineer a phononic frequency gap that suppresses the decohering thermal phonon population just below the Cooper-frequency, and thus the normal conduction electron population. For example, such engineering can relax the cooling requirements for a variety of circuits yielding higher operational quality factors for superconducting electronics and interconnects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.