YBa2SnO5.5: A New Phase in YBa2Cu3O7-SnO2System
- 1 May 1992
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 31 (5R)
- https://doi.org/10.1143/jjap.31.1323
Abstract
A new compound, YBa2SnO5.5was found forming in YBa2Cu3O7-x-SnO2system. Preparation of YBa2SnO5.5as a single phase compound by solid state reaction method is reported for the first time. This new compound has a cubic structure with a lattice parametera=8.42 Å. Kinetics of sintering and its dielectric properties are briefly discussed. No chemical reaction between YBa2Cu3O7-xand YBa2SnO5.5was observed even at an elevated temperatue of 950°C. Sintered YBa2SnO5.5is proposed as a new substrate material for the preparation of superconducting YBa2Cu3O7-xthin films.Keywords
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