Crystal Structure of the Tetragonal Form of Ba2YCu3O7-x
- 1 July 1987
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 26 (7A), L1214
- https://doi.org/10.1143/jjap.26.l1214
Abstract
The crystal structure of the high-temperature form of Ba2YCu3O7-x was refined by the Rietveld analysis of TOF neutron powder diffraction data taken at 49 K. This compound is tetragonal with lattice constants a = 3.8533 Å and c = 11.7631 Å. It has an oxygen-deficient triperovskite structure, in which oxygen atoms on a z = 1/2 plane are missing, an oxygen site at (0, 1/2, 0) is about 9% occupied, and Ba2+ and Y3+ ions are completely ordered in a [Ba-Y-Ba]∞, sequence along the c axis.Keywords
This publication has 12 references indexed in Scilit:
- Crystal Structure of the Tetragonal Form of Ba2YCu3O7-xJapanese Journal of Applied Physics, 1987
- Thermal and X-Ray Analyses of High Temperature Superconductor YBa2Cu3O6.74Japanese Journal of Applied Physics, 1987
- Crystallographic description of phases in the Y-Ba-Cu-O superconductorPhysical Review B, 1987
- Crystal Structures of YBa2Cu3Ox and LnBa2Cu3Ox (Ln = Ho and Dy)Japanese Journal of Applied Physics, 1987
- Crystal Structure of a Ba-Y-Cu-O Superconductor as Revealed by Rietveld Analysis of X-Ray Powder Diffraction DataJapanese Journal of Applied Physics, 1987
- Effect of Oxygen Deficiency on the Crystal Structure and Superconducting Properties of the Ba2YCu3OyJapanese Journal of Applied Physics, 1987
- X-Ray Single Crystal Structure Analysis of Tetragonal Ba2YCu3-xO7-y, a High Temperature Form of the SuperconductorJapanese Journal of Applied Physics, 1987
- Bulk superconductivity at 91 K in single-phase oxygen-deficient perovskitePhysical Review Letters, 1987
- High Transition Temperature Superconductor: Y-Ba-Cu OxideJapanese Journal of Applied Physics, 1987
- Superconductivity at 93 K in a new mixed-phase Y-Ba-Cu-O compound system at ambient pressurePhysical Review Letters, 1987