Crystal Structure of Tetragonal YBa2Cu3-δCoδO7-γ (δ=0, 0.3)
- 1 October 1987
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 26 (10A), L1727
- https://doi.org/10.1143/jjap.26.l1727
Abstract
Crystal structures of tetragonal YBa2Cu2.7Co0.3O7-γ and tetragonal YBa2Cu3O7-γ are determined by X-ray and TOF neutron powder diffractometries. Structural parameters are obtained by the Rietveld profile refinement method. In YBa2Cu2.7Co0.3O7-γ', cobalt atoms preferentially occupy one of the copper sites at 1a(0 0 0) rather than the 2g(0 0 z) site with z∼0.36. The lattice constants are a = 3.8644(2)Å and c = 11.7881(9)Å for the quenched YBa2Cu3O6.15 and a = 3.8752(2)Å and c = 11.6851(9)Å for the furnace-cooled YBa2Cu2.7Co0.3O6.81.Keywords
This publication has 10 references indexed in Scilit:
- Effect of Co Substitution on Tc in YBa2Cu3-xCoxO7-y(x=0∼1)Japanese Journal of Applied Physics, 1987
- Crystal Structure of the Tetragonal Form of Ba2YCu3O7-xJapanese Journal of Applied Physics, 1987
- Neutron Diffraction Study on Orthorhombic YBa2Cu3O6.74 and Tetragonal YBa2Cu3O6.05Japanese Journal of Applied Physics, 1987
- Structure of Tetragonal YBa2Cu3O5.8Japanese Journal of Applied Physics, 1987
- Effect of transition-metal elements on the superconductivity of Y-Ba-Cu-OPhysical Review B, 1987
- Superconductivity above 90 K in the square-planar compound system A with A=Y, La, Nd, Sm, Eu, Gd, Ho, Er and LuPhysical Review Letters, 1987
- New superconducting cuprate perovskitesPhysical Review Letters, 1987
- Superconductivity in YBa2Cu3-yNiyO7-δJapanese Journal of Applied Physics, 1987
- A software package for the rietveld analysis of X-ray and neutron diffraction patterns.Nihon Kessho Gakkaishi, 1985
- Rietveld refinement with spallation neutron powder diffraction dataJournal of Applied Crystallography, 1982