US6602588B1
Expired / Lapsed
US
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Superconducting structure including mixed rare earth barium-copper compositions
Assignee: Los Alamos National Security LLC
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Filing: 1999-09-14
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Granted: 2003-08-05
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Expires: 2019-09-14
Abstract
Abstract A superconductive structure including a dielectric oxide substrate and a thin layer of a rare earth-barium-copper oxide superconducting film thereon, the thin layer including at least two rare earth elements is provided.
Inventors
- 👤 Chuhee Kwon
- 👤 Quanxi Jia
- 👤 Stephen R. Foltyn
- 👤 James L. Smith
- 👤 Eric J. Peterson
- 👤 William Larry Hults
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:21
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/80; H10N60/85; H10N60/855; H10N60/857; H10N60/858; H10N60/01; H10N60/0268; H10N60/0296; H10N60/0521; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
81 words
A superconducting structure comprising: a substrate; a thin film from about 5 to 500 nm in thickness of a superconducting rare earth-barium-copper oxide thereon said substrate, said thin film being a single thin film mixture including yttrium and samarium, said single thin film mixture of superconducting material characterized as having chemical and structural compatibility with said substrate, said superconducting structure including said single thin film mixture having stronger flux pinning under magnetic fields than a single thin film of YBCO alone.
Claim 2
Dependent Claim
81 words
A superconducting structure comprising: a substrate; a thin film from about 5 to 500 nm in thickness of a superconducting rare earth-barium-copper oxide thereon said substrate, said thin film being a single thin film mixture including yttrium and samarium, said single thin film mixture of superconducting material characterized as having chemical and structural compatibility with said substrate, said superconducting structure including said single thin film mixture having stronger flux pinning under magnetic fields than a single thin film of YBCO alone.
Claim 3
Dependent Claim
37 words
The structure of claim 1 wherein said substrate is a dielectric oxide of a material selected from the group consisting of lanthanum aluminum oxide, strontium titanium oxide, magnesium oxide, neodymium gadolinium oxide, and a cerium oxide/yttria-stabilized zirconia.
Claim 4
Dependent Claim
32 words
The structure of claim 1 wherein said samarium and yttrium are present in a ratio of about 50 mole percent to about 50 mole percent, on basis of total rare earth elements.
Claim 5
Dependent Claim
37 words
The structure of claim 1 wherein said substrate is a dielectric oxide of a material selected from the group consisting of lanthanum aluminum oxide, strontium titanium oxide, magnesium oxide, neodymium gadolinium oxide, and a cerium oxide/yttria-stabilized zirconia.
Claim 6
Dependent Claim
34 words
The structure of claim 1 wherein said samarium and yttrium are present in a ratio of about 30 mole percent (Sm) to about 70 mole percent (Y), on basis of total rare earth elements.
Claim 7
Dependent Claim
34 words
The structure of claim 1 wherein said samarium and yttrium are present in a ratio of about 70 mole percent (Sm) to about 30 mole percent (Y), on basis of total rare earth elements.
Claim 8
Dependent Claim
81 words
A superconducting structure comprising: a substrate; a thin film from about 5 to 500 nm in thickness of a superconducting rare earth-barium-copper oxide thereon said substrate, said thin film being a single thin film mixture including yttrium and europium, said single thin film mixture of superconducting material characterized as having chemical and structural compatibility with said substrate, said superconducting structure including said single thin film mixture having stronger flux pinning under magnetic fields than a single thin film of YBCO alone.
Claim 9
Dependent Claim
81 words
A superconducting structure comprising: a substrate; a thin film from about 5 to 500 nm in thickness of a superconducting rare earth-barium-copper oxide thereon said substrate, said thin film being a single thin film mixture including yttrium and europium, said single thin film mixture of superconducting material characterized as having chemical and structural compatibility with said substrate, said superconducting structure including said single thin film mixture having stronger flux pinning under magnetic fields than a single thin film of YBCO alone.
Claim 10
Dependent Claim
38 words
The structure of claim 7 wherein said europium and yttrium are present in a ratio of about 30 to 70 mole percent (Y) to about 70 to 30 mole percent (Eu), on basis of total rare earth elements.
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