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Buffer layers for REBCO films for use in superconducting devices

United States Patent

June 10, 2014
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
A superconducting article includes a substrate having a biaxially textured surface. A biaxially textured buffer layer, which can be a cap layer, is supported by the substrate. The buffer layer includes a double perovskite of the formula A.sub.2B'B''O.sub.6, where A is rare earth or alkaline earth metal and B' and B'' are different transition metal cations. A biaxially textured superconductor layer is deposited so as to be supported by the buffer layer. A method of making a superconducting article is also disclosed.
Goyal; Amit (Knoxville, TN), Wee; Sung-Hun (Knoxville, TN)
UT-Battelle, LLC (Oak Ridge, TN), University of Tennessee Research Foundation (Knoxville, TN)
13/ 088,179
April 15, 2011
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with government support under DE-AC05-000822725 awarded by the United States Department of Energy. The Government has certain rights in the invention.