Title: Buffer layers for REBCO films for use in superconducting devices

Abstract

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.

Inventors:

Goyal, Amit; Wee, Sung-Hun

Issue Date:

2014-06-10

Research Org.:

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1134258

Patent Number(s):

8748349

Application Number:

13/088,179

Assignee:

UT-Battelle, LLC (Oak Ridge, TN); University of Tennessee Research Foundation (Knoxville, TN)

Patent Classifications (CPCs):

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01B - CABLES

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H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

H01L39/126 - {comprising copper oxide}
H01L39/2461 - {Intermediate layers, e.g. for growth control}
H01L39/24 - Processes or apparatus peculiar to the manufacture or treatment of devices provided for in H01L39/00 or of parts thereof

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01B - CABLES

H01B12/00 - Superconductive or hyperconductive conductors, cables, or transmission lines

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Y10T428/24355 - Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]

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DOE Contract Number:  

AC05-000822725

Resource Type:

Patent

Resource Relation:

Patent File Date: 2011 Apr 15

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY