Document Type

Patent

Publication Date

9-15-1998

Abstract

Improved superconducting thin films are provided having very high Tc (zero) and Jc values, on the order of greater than or equal to 120K and 10^5 A/cm^2 or greater, respectively. The films of the invention are adapted for deposit and support on a compatible substrate, and include a superconductive material, most preferably Tl2Ba2Ca2Cu3O10, with up to about 10% elemental gold admixed with the superconductive material. The preferred method for fabricating the thin film superconductors comprises first forming a non-superconducting precursor film on a compatible substrate which is placed in contact with an unsintered bulk body containing thallium. The substrate with precursor film are sintered with the bulk body to form the desired superconductor material.

Department

Physics

Patent Number

US5807809

Application Filed

7-2-1997

Assignee

Midwest Superconductivity, Inc. (Lawrence, AR) The University of Arkansas (Fayetteville, AR)

Comments

Ying Xin, Department of Physics; Greg J. Salamo, Department of Physics; Fui Tak Chan, Department of Physics

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