Preparation and Properties of Ba2YCu3O7-y Single Crystals Grown Using an Indium Oxide Flux
- 1 March 1988
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 27 (3A) , L340
- https://doi.org/10.1143/jjap.27.l340
Abstract
Single crystals of Ba2YCu3O7-y were prepared using an In2O3 flux. Considerable variations in 7-y exist among crystals from different batches, although the same annealing conditions were applied. Tetragonal phases were found to be quenchable at 630°C in air for certain single crystals, although tetragonal phases of highly aluminous sintered specimens were unquenchable below 700°C. These characteristics are explained by the variation of oxygen mobility among the single crystals which were controlled by aluminium impurities and certain defect structures.Keywords
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