James R Groves

US Patent:

6716545, Apr 6, 2004

Filed:

Mar 28, 2002

Appl. No.:

10/113475

Inventors:

Terry G. Holesinger - Los Alamos NM
Stephen R. Foltyn - Los Alamos NM
Paul N. Arendt - Los Alamos NM
James R. Groves - Los Alamos NM
Quanxi Jia - Los Alamos NM
Alicia Ayala - Santa Fe NM

Assignee:

The Regents of the University of California - Los Alamos NM

International Classification:

B32B 1900

US Classification:

428701, 505237, 505238

Abstract:

Copper or excess copper is added to one or more layers of a superconducting composite structure to reduce migration of copper form a copper based superconducting layer.

US Patent:

6756139, Jun 29, 2004

Filed:

Mar 28, 2002

Appl. No.:

10/113476

Inventors:

Quanxi Jia - Los Alamos NM
Stephen R. Foltyn - Los Alamos NM
Paul N. Arendt - Los Alamos NM
James R. Groves - Los Alamos NM

Assignee:

The Regents of the University of California - Los Alamos NM

International Classification:

B32B 1900

US Classification:

428701, 505237, 505238

Abstract:

An article including a substrate, a layer of an inert oxide material upon the surface of the substrate, a layer of an amorphous oxide or oxynitride material upon the inert oxide material layer, a layer of an oriented cubic oxide material having a rock-salt-like structure upon the amorphous oxide material layer, and a layer of a SrRuO buffer material upon the oriented cubic oxide material layer is provided together with additional layers such as a HTS top-layer of YBCO directly upon the layer of a SrRuO buffer material layer. With a HTS top-layer of YBCO upon at least one layer of the SrRuO buffer material in such an article, J âs of up to 1. 3Ã10 A/cm have been demonstrated with projected ICs of over 200 Amperes across a sample 1 cm wide.

US Patent:

6800591, Oct 5, 2004

Filed:

Sep 11, 2002

Appl. No.:

10/242895

Inventors:

Quanxi Jia - Los Alamos NM
Stephen R. Foltyn - Los Alamos NM
Paul N. Arendt - Los Alamos NM
James R. Groves - Los Alamos NM

Assignee:

The Regents of the University of California - Los Alamos NM

International Classification:

H01B 1200

US Classification:

505237, 505238, 428701, 428702, 428930

Abstract:

An article including a substrate, at least one intermediate layer upon the surface of the substrate, a layer of an oriented cubic oxide material having a rock-salt-like structure upon the at least one intermediate layer, and a layer of a SrRuO buffer material upon the oriented cubic oxide material layer is provided together with additional layers such as a HTS top-layer of YBCO directly upon the layer of a SrRuO buffer material layer. With a HTS top-layer of YBCO upon at least one layer of the SrRuO buffer material in such an article, J s of up to 1. 3Ã10 A/cm have been demonstrated with projected I s of over 200 Amperes across a sample 1 cm wide.

US Patent:

6843898, Jan 18, 2005

Filed:

Apr 6, 2004

Appl. No.:

10/819530

Inventors:

Terry G. Holesinger - Los Alamos NM, US
Stephen R. Foltyn - Los Alamos NM, US
Paul N. Arendt - Los Alamos NM, US
James R. Groves - Los Alamos NM, US
Quanxi Jia - Los Alamos NM, US
Alicia Ayala - Santa Fe NM, US

Assignee:

The Regents of the University of California - Los Alamos NM

International Classification:

C23C 1400
C25B 1100
C25B 1300
C25B 900

US Classification:

20429813, 20419224, 428697, 428702, 501108

Abstract:

Copper or excess copper is added to one or more layers of a superconducting composite structure to reduce migration of copper form a copper based superconducting layer.

US Patent:

6884527, Apr 26, 2005

Filed:

Jul 21, 2003

Appl. No.:

10/624348

Inventors:

James R. Groves - Los Alamos NM, US
Stephen R. Foltyn - Los Alamos NM, US
Paul N. Arendt - Los Alamo NM, US

Assignee:

The Regents of the University of California - Los Alamos MN

International Classification:

B32B019/00
B32B009/00
H01B012/00
H01F006/00
H01L039/00

US Classification:

428701, 505237, 505238

Abstract:

An article including a substrate, a layer of a metal phosphate material such as an aluminum phosphate material upon the surface of the substrate, and a layer of an oriented cubic oxide material having a rock-salt-like structure upon the metal phosphate material layer is provided together with additional layers such as a HTS top-layer of YBCO directly upon a layer of a buffer material such as a SrTiRuOlayer.

US Patent:

6899928, May 31, 2005

Filed:

Jul 29, 2002

Appl. No.:

10/208086

Inventors:

James R. Groves - Los Alamos NM, US
Paul N. Arendt - Los Alamos NM, US
Robert H. Hammond - Los Altos CA, US

Assignee:

The Regents of the University of California - Los Alamos NM

International Classification:

C23C014/18
C23C014/48
C23C014/24
C30B028/14

US Classification:

427529, 427564, 427523, 117 92, 117103, 117108

Abstract:

The present invention is directed towards a process and apparatus for epitaxial deposition of a material, e. g. , a layer of MgO, onto a substrate such as a flexible metal substrate, using dual ion beams for the ion beam assisted deposition whereby thick layers can be deposited without degradation of the desired properties by the material. The ability to deposit thicker layers without loss of properties provides a significantly broader deposition window for the process.

US Patent:

6921741, Jul 26, 2005

Filed:

Feb 7, 2003

Appl. No.:

10/359808

Inventors:

Paul N. Arendt - Los Alamos NM, US
Stephen R. Foltyn - Los Alamos NM, US
James R. Groves - Los Alamos NM, US
Quanxi Jia - Los Alamos NM, US

Assignee:

The Regents of the University of California - Los Alamos NM

International Classification:

B32B019/00
B32B009/00
H01L039/00

US Classification:

505239, 505230, 505237, 505238, 428701, 428702

Abstract:

A composite substrate structure including a substrate, a layer of a crystalline metal oxide or crystalline metal oxynitride material upon the substrate, a layer of an oriented cubic oxide material having a rock-salt-like structure upon the crystalline metal oxide or crystalline metal oxynitride material layer is provided together with additional layers such as one or more layers of a buffer material upon the oriented cubic oxide material layer. J′s of 2. 3×10A/cmhave been demonstrated with projected I′s of 320 Amperes across a sample 1 cm wide for a superconducting article including a flexible polycrystalline metallic substrate, an inert oxide material layer upon the surface of the flexible polycrystalline metallic substrate, a layer of a crystalline metal oxide or crystalline metal oxynitride material upon the layer of the inert oxide material, a layer of an oriented cubic oxide material having a rock-salt-like structure upon the crystalline metal oxide or crystalline metal oxynitride material layer, a layer of a buffer material upon the oriented cubic oxide material layer, and, a top-layer of a high temperature superconducting material upon the layer of a buffer material.

US Patent:

6933065, Aug 23, 2005

Filed:

Sep 25, 2003

Appl. No.:

10/387952

Inventors:

Paul N. Arendt - Los Alamos NM, US
Stephen R. Foltyn - Los Alamos NM, US
James R. Groves - Los Alamos NM, US
Terry G. Holesinger - Los Alamos NM, US
Quanxi Jia - Los Alamos NM, US

Assignee:

The Regents of the University of California - Los Alamos NM

International Classification:

B32B019/00
B32B009/00
H01L039/00

US Classification:

428698, 428701, 428702, 505230, 505237, 505238

Abstract:

An article including a substrate, a layer of an inert oxide material upon the surface of the substrate, (generally the inert oxide material layer has a smooth surface, i. e. , a RMS roughness of less than about 2 nm), a layer of an amorphous oxide or oxynitride material upon the inert oxide material layer, a layer of an oriented cubic oxide material having a rock-salt-like structure upon the amorphous oxide material layer is provided together with additional layers such as at least one layer of a buffer material upon the oriented cubic oxide material layer or a HTS top-layer of YBCO directly upon the oriented cubic oxide material layer. With a HTS top-layer of YBCO upon at least one layer of a buffer material in such an article, J's of 1. 4×10A/cmhave been demonstrated with projected I's of 210 Amperes across a sample 1 cm wide.

Author:

James E. Groves

ISBN #:

0814730833

Author:

James E. Groves

ISBN #:

0814730760