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Title: 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:
 [1];  [2];  [3]
  1. Bolingbrook, IL
  2. Houston, TX
  3. Evanston, IL
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
869658
Patent Number(s):
5374611
Assignee:
University of Chicago (Chicago, IL); Northwestern University (Evanston, IL)
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 = {1994},
month = {1}
}

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