High Quality Tunnel Junction Devices Using High T(c) Superconductors.

reportActive / Technical Report | Accession Number: ADD014329 | Need Help?

Abstract:

This invention relates generally to superconducting devices and, specifically, to tunnel junctions and Josephson junctions in superconducting devices. A structure and method for fabricating tunnel junctions from high transition temperature material are disclosed. A tunnel junction consists of three films successively deposited on a substrate a superconductor, an insulator or normal metal and a superconducting or normal metal. The critical interface is between the superconductor and the insulator or normal metal. Previous attempts to form tunnel junctions have used the upper surface of the superconductor which is invariably rough and inhomogeneous. This invention uses the lower surface which is more epitaxial to fabricate tunnel junctions and Josephson junctions. Patent Applications. AW

Author(s):
Soulen, Robert J. ; Wolf, Stuart A.
Author Organization(s):
DEPARTMENT OF THE NAVY WASHINGTON DC
Descriptive Note:
Patent Application, Filed 30 Jun 89,
Pagination:
0014

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
PAT-APPL-373 555
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*FILMS, *JOSEPHSON JUNCTIONS, *PATENT APPLICATIONS, *SUBSTRATES, *SUPERCONDUCTORS, *TUNNELING(ELECTRONICS), HIGH TEMPERATURE, INTERFACES, JUNCTIONS, MATERIALS, METALS, SURFACES, TRANSITION TEMPERATURE
Field(s)/Group(s):
Solid State Physics, Electricity and Magnetism, Electrical and Electronic Equipment, Quantum Theory and Relativity
Report Date:
1989 Jun 30