Preparation and composition of superconducting copper oxides based on Ga-O layers
Abstract
A high temperature superconducting material with the general formula GaSr.sub.2 Ln.sub.1-x MxCu.sub.2 O.sub.7.+-.w wherein Ln is selected from the group consisting of La, Ce, Pt, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Y and M is selected from the group consisting of Ca and Sr, 0.2.ltoreq.x.ltoreq.0.4 and w is a small fraction of one. A method of preparing this high temperature superconducting material is provided which includes heating and cooling a mixture to produce a crystalline material which is subsequently fired, ground and annealed at high pressure and temperature in oxygen to establish superconductivity.
- Inventors:
-
- Bolingbrook, IL
- Houston, TX
- Evanston, IL
- Issue Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- OSTI Identifier:
- 869658
- Patent Number(s):
- 5374611
- Assignee:
- University of Chicago (Chicago, IL); Northwestern University (Evanston, IL)
- Patent Classifications (CPCs):
-
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- DOE Contract Number:
- W-31109-ENG-38
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- preparation; composition; superconducting; copper; oxides; based; ga-o; layers; temperature; material; formula; gasr; ln; 1-x; mxcu; selected; consisting; eu; gd; tb; tm; sr; ltoreq; fraction; method; preparing; provided; heating; cooling; mixture; produce; crystalline; subsequently; fired; ground; annealed; pressure; oxygen; establish; superconductivity; crystalline material; conducting material; copper oxide; superconducting material; temperature superconducting; oxides based; /505/252/
Citation Formats
Dabrowski, Bogdan, Vaughey, J T, and Poeppelmeier, Kenneth R. Preparation and composition of superconducting copper oxides based on Ga-O layers. United States: N. p., 1994.
Web.
Dabrowski, Bogdan, Vaughey, J T, & Poeppelmeier, Kenneth R. Preparation and composition of superconducting copper oxides based on Ga-O layers. United States.
Dabrowski, Bogdan, Vaughey, J T, and Poeppelmeier, Kenneth R. Sat .
"Preparation and composition of superconducting copper oxides based on Ga-O layers". United States. https://www.osti.gov/servlets/purl/869658.
@article{osti_869658,
title = {Preparation and composition of superconducting copper oxides based on Ga-O layers},
author = {Dabrowski, Bogdan and Vaughey, J T and Poeppelmeier, Kenneth R},
abstractNote = {A high temperature superconducting material with the general formula GaSr.sub.2 Ln.sub.1-x MxCu.sub.2 O.sub.7.+-.w wherein Ln is selected from the group consisting of La, Ce, Pt, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Y and M is selected from the group consisting of Ca and Sr, 0.2.ltoreq.x.ltoreq.0.4 and w is a small fraction of one. A method of preparing this high temperature superconducting material is provided which includes heating and cooling a mixture to produce a crystalline material which is subsequently fired, ground and annealed at high pressure and temperature in oxygen to establish superconductivity.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 1994},
month = {Sat Jan 01 00:00:00 EST 1994}
}
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Works referenced in this record:
New family of planar cuprate superconductors: Effect of nonmagnetic chains and planes
journal, December 1991
- Poeppelmeier, K. R.; Thiel, J. P.; Vaughey, J. T.
- Physica C: Superconductivity, Vol. 185-189
Synthesis and structure of a new family of cuprate superconductors: LnSr2Cu2GaO7
journal, September 1991
- Vaughey, J. T.; Thiel, J. P.; Hasty, E. F.
- Chemistry of Materials, Vol. 3, Issue 5
Anomalous x dependence of Tc and possibility of low-temperature structural phase transition in La2−xSrxCu0.99M0.01O4 (M Ni, Zn, Ga)
journal, June 1992
- Koike, Y.; Kobayashi, A.; Kawaguchi, T.
- Solid State Communications, Vol. 82, Issue 11
Hole formation and charge transfer in Y1−xCaxSr2Cu2GaO7, a new oxide superconductor
journal, October 1992
- Dravid, Vinayak P.; Zhang, Hong
- Physica C: Superconductivity, Vol. 200, Issue 3-4
New family of superconducting copper oxides: GaSr2Ln1−xCaxCu2O7
journal, April 1992
- Dabrowski, B.; Radaelli, P.; Hinks, D. G.
- Physica C: Superconductivity and its Applications, Vol. 193, Issue 1-2