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Active superconducting devices formed of thin films

  • US 5,019,721 A
  • Filed: 08/18/1989
  • Issued: 05/28/1991
  • Est. Priority Date: 08/18/1989
  • Status: Expired due to Fees
First Claim
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1. A controllable active superconducting device comprising:

  • (a) a main conduction channel formed of a film of superconductor on a substrate;

    (b) an active weak link region interposed sin the main conduction channel, the active weak link region composed of a plurality of links formed of a thin film of superconductor separated by non-superconductive voids, the thickness and lateral dimensions of the links selected such that magnetic flux can propagate across the weak link region when it is superconducting;

    (c) means for providing a magnetic flux to the active weak link region which can propagate across the weak link region to control the resistance of the weak region.

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