Nonstoichiometry of Superconducting Ba2YCu3O7-y at Temperatures between 870 and 1180 K

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Copyright (c) 1988 The Japan Society of Applied Physics
, , Citation Masanori Iwase et al 1988 Jpn. J. Appl. Phys. 27 L51 DOI 10.1143/JJAP.27.L51

1347-4065/27/1A/L51

Abstract

A thermogravimetric technique was employed for the determination of the nonstoichiometry of Ba2YCu3O7-y at temperatures between 870 and 1180 K and the oxygen partial pressure of 0.005 to 1 atm. The oxygen deficiency, y, varied from 0.8 to 1.3, corresponding to the presence of Cu2+ and Cu+ at the temperatures investigated.

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10.1143/JJAP.27.L51