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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[minus]x]M[sub x]Cu[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 C and Sr, 0.2[<=]x[<=]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. 14 figures.

Inventors:
; ;
Issue Date:
OSTI Identifier:
6663753
Patent Number(s):
5374611 A
Application Number:
PPN: US 7-956844
Assignee:
University of Chicago, Chicago, IL (United States); Northwestern University, Evanston, IL (United States)
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Resource Relation:
Patent File Date: 1 Oct 1992
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; HIGH-TC SUPERCONDUCTORS; CHEMICAL COMPOSITION; FABRICATION; CALCIUM OXIDES; CERIUM OXIDES; COPPER OXIDES; DYSPROSIUM OXIDES; ERBIUM OXIDES; EUROPIUM OXIDES; GADOLINIUM OXIDES; GALLIUM OXIDES; HOLMIUM OXIDES; LANTHANUM OXIDES; PLATINUM OXIDES; SAMARIUM OXIDES; STRONTIUM OXIDES; TERBIUM OXIDES; THULIUM OXIDES; YTTERBIUM OXIDES; YTTRIUM OXIDES; ALKALINE EARTH METAL COMPOUNDS; CALCIUM COMPOUNDS; CERIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; DYSPROSIUM COMPOUNDS; ERBIUM COMPOUNDS; EUROPIUM COMPOUNDS; GADOLINIUM COMPOUNDS; GALLIUM COMPOUNDS; HOLMIUM COMPOUNDS; LANTHANUM COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PLATINUM COMPOUNDS; RARE EARTH COMPOUNDS; SAMARIUM COMPOUNDS; STRONTIUM COMPOUNDS; SUPERCONDUCTORS; TERBIUM COMPOUNDS; THULIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; YTTERBIUM COMPOUNDS; YTTRIUM COMPOUNDS; 360201* - Ceramics, Cermets, & Refractories- Preparation & Fabrication

Citation Formats

Dabrowski, B, Vaughey, J T, and Poeppelmeier, K R. Preparation and composition of superconducting copper oxides based on Ga-O layers. United States: N. p., 1994. Web.
Dabrowski, B, Vaughey, J T, & Poeppelmeier, K R. Preparation and composition of superconducting copper oxides based on Ga-O layers. United States.
Dabrowski, B, Vaughey, J T, and Poeppelmeier, K R. Tue . "Preparation and composition of superconducting copper oxides based on Ga-O layers". United States.
@article{osti_6663753,
title = {Preparation and composition of superconducting copper oxides based on Ga-O layers},
author = {Dabrowski, B and Vaughey, J T and Poeppelmeier, K R},
abstractNote = {A high temperature superconducting material with the general formula GaSr[sub 2]Ln[sub 1[minus]x]M[sub x]Cu[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 C and Sr, 0.2[<=]x[<=]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. 14 figures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {12}
}