Orthorhombic-tetragonal transition in YBa2Cu3Ox
- 1 December 1988
- journal article
- Published by IOP Publishing in Superconductor Science and Technology
- Vol. 1 (4) , 169-172
- https://doi.org/10.1088/0953-2048/1/4/003
Abstract
Large discrepancies occur between the temperature of the orthorhombic-tetragonal transition determined at high temperatures and that found in samples quenched into mercury from different temperatures. This is because for intermediate x values, samples appear to undergo a non-quenchable transition from tetragonal to orthorhombic during cooling which is not associated with oxygen uptake. Anomalies in the composition dependence of the c lattice parameter occur and may be associated with creation of vacancies in the O(4) sites that separate the copper-oxygen planes and chains.Keywords
This publication has 11 references indexed in Scilit:
- Oxygen stoichiometry in Ba2YCu3OxPublished by Elsevier ,2003
- Oxygen vacancy ordering and superconductivity in YBa2Cu3O7−xPhysica C: Superconductivity and its Applications, 1988
- Oxygen deficiency in Ba2YCu3O7−δ: The need for a microscopic descriptionPhysica B+C, 1987
- Phase relation and superconductivity in the oxygen nonstoichiometric system, Ba2YCu3OxMaterials Research Bulletin, 1987
- Structural and superconducting properties of orthorhombic and tetragonal : The effect of oxygen stoichiometry and ordering on superconductivityPhysical Review B, 1987
- Single-phase 60-K bulk superconductor in annealed with correlated oxygen vacancies in the Cu-O chainsPhysical Review B, 1987
- High-temperature order-disorder phase transition in the superconductor observed by electrical resistivity measurementsPhysical Review B, 1987
- Oxygen ordering and the orthorhombic-to-tetragonal phase transition inPhysical Review B, 1987
- X-RAY STUDIES OF HELIUM-QUENCHED Ba2YCu3O7-xAdvanced Ceramic Materials, 1987
- Variations of stoichiometry and cell symmetry in YBa2Cu3O7−x with temperature and oxygen pressureNature, 1987