Superconductivity device comprising a phononic crystal
Patent
·
OSTI ID:1925020
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.
- Research Organization:
- Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- DOE Contract Number:
- NA0003525
- Assignee:
- National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
- Patent Number(s):
- 11,424,400
- Application Number:
- 16/294,011
- OSTI ID:
- 1925020
- Country of Publication:
- United States
- Language:
- English
Enhanced quasiparticle lifetime in a superconductor by selective blocking of recombination phonons with a phononic crystal
|
journal | July 2018 |
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