Annealing treatment effects on structure and superconductivity in Y1Ba2Cu3O9-x

We report the effects of heat treatment and ambient on the structure and superconducting properties of Y1Ba2Cu3O9−x. The structure undergoes an orthorhombic-to-tetragonal transition on heating at about 700 °C, caused by oxygen loss and disordering of oxygen vacancies on the copper plane between the...

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Bibliographic Details
Published in:Applied physics letters 1987-08, Vol.51 (8), p.614-616
Main Authors: BEYERS, R, LIM, G, TSUEI, C. C, PARK, S. I, SHAFER, M. W, GALLAGHER, W. J, ENGLER, E. M, LEE, V. Y, RAMIREZ, M. L, SAVOY, R. J, JACOWITZ, R. D, SHAW, T. M, LA PLACA, S, BOEHME, R
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Crystalline state (including molecular motions in solids)
Crystallographic aspects of phase transformations
pressure effects
Exact sciences and technology
Physics
Structure of solids and liquids
crystallography
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Summary:We report the effects of heat treatment and ambient on the structure and superconducting properties of Y1Ba2Cu3O9−x. The structure undergoes an orthorhombic-to-tetragonal transition on heating at about 700 °C, caused by oxygen loss and disordering of oxygen vacancies on the copper plane between the barium layers. Heat treatments that promote maximum ordering of the oxygen vacancies result in superior superconducting properties.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.98364