Superconducting thin films on potassium tantalate substrates

Patent · Tue May 05 00:00:00 EDT 1992

OSTI ID:5077966

Feenstra, R; Boatner, L A

This patent describes a composition for the lossless transmission of electrical current, it comprises: a superconducting thin film epitaxially deposited on a oriented surface of a single crystal KTa{sub 1{minus}z}Nb{sub 2}O{sub 3} substrate, where z is 0 to 1, wherein the superconducting thin film is selected from the group consisting of YBa{sub 2{minus}}Cu{sub 3}O{sub 7}, Y{sub 2}Ba{sub 4}Cu{sub 8}O{sub 20}, a compound wherein a trivalent rare earth element replaces yttrium in compound YBa{sub 2}Cu{sub 3}O{sub 7}, and a compound wherein scandium replaces yttrium in the compound YBa{sub 2}Cu{sub 3}O{sub 7}.

• Assignee: Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States)
• Patent Number(s): US 5110790; A
• Application Number: PPN: US 7-269410
• OSTI ID: 5077966
• Resource Relation: Patent File Date: 10 Nov 1988
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
36 MATERIALS SCIENCE
SCANDIUM COMPOUNDS
SUPERCONDUCTIVITY
SUPERCONDUCTING FILMS
FABRICATION
TITANIUM COMPOUNDS
SUBSTRATES
YTTRIUM COMPOUNDS
CHEMICAL COMPOSITION
MATERIALS TESTING
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FILMS
PHYSICAL PROPERTIES
TESTING
TRANSITION ELEMENT COMPOUNDS
665412* - Superconducting Devices- (1992-)
665411 - Basic Superconductivity Studies- (1992-)
360207 - Ceramics
Cermets
& Refractories- Superconducting Properties- (1992-)
360202 - Ceramics
Cermets
& Refractories- Structure & Phase Studies