Accession Number : ADD016427

Title :   Method for Forming Josephson Break Junctions.

Descriptive Note : Patent, Filed 17 Sep 92, patented 14 Jun 94,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Perez, Ignacio M ; Scott, William R

Report Date : 14 Jun 1994

Pagination or Media Count : 8

Abstract : A Josephson break junction device suitable for highly sensitive electronic detecting systems. A superconductor film such as YBa2Cu3O7 is deposited on a substrate such as a simple-crystal MgO. Ice film is fractured across a narrow strip by at least one indentation in the substrate juxtaposed from the strip to form a break junction. A transducer is affixed to the substrate for applying a bending movement to the substrate to regulate the distance across the gap formed at the fracture to produce a Josephson turned junction effect. Alternatively or in addition to the transducer, a bridge of a novel metal is applied across the gap to produce a weak-link junction.

Descriptors :   *JOSEPHSON JUNCTIONS, *PATENTS, *HIGH TEMPERATURE, BENDING, ELECTRONICS, CIRCUIT BREAKERS, THIN FILMS, SUBSTRATES, TRANSDUCERS, SUPERCONDUCTORS, FABRICATION, EPITAXIAL GROWTH, SINGLE CRYSTALS, MAGNESIUM OXIDES

Subject Categories : Solid State Physics
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE