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Substrates suitable for deposition of superconducting thin films

Patent ·
OSTI ID:868670
A superconducting system for the lossless transmission of electrical current comprising a thin film of superconducting material Y.sub.1 Ba.sub.2 Cu.sub.3 O.sub.7-x epitaxially deposited upon a KTaO.sub.3 substrate. The KTaO.sub.3 is an improved substrate over those of the prior art since the it exhibits small lattice constant mismatch and does not chemically react with the superconducting film.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
Patent Number(s):
US 5188906
OSTI ID:
868670
Country of Publication:
United States
Language:
English

References (2)

The microstructure of YBa 2 Cu 3 O 7-x thin films on SrTiO 3 substrate journal February 1988
Feasibility of electrocaloric refrigeration for the 4–15 K temperature range journal April 1979