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High temperature superconductor Josephson junction element and manufacturing method for the same

  • US 6,541,789 B1
  • Filed: 08/30/1999
  • Issued: 04/01/2003
  • Est. Priority Date: 09/01/1998
  • Status: Expired due to Fees
First Claim
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1. A Josephson junction comprising:

  • a first superconductive layer formed on a substrate and having an inclination portion;

    an insulating film formed on said first superconductive layer and having an inclination portion following to said inclination portion of said first superconductive layer;

    a barrier layer formed on said inclination portion of said first superconductive layer;

    a second superconductive layer formed on said inclination portion of said insulating film and said inclination portion of said barrier layer;

    wherein said barrier layer has a perovskite structure; and

    wherein a material of said barrier layer has a lattice constant from 0.41 nm to 0.43 nm.

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