Crystal Structures of (La1-xMx)2CuO4-δ(M=Sr and Ba)
- 1 April 1987
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 26 (4A), L363-365
- https://doi.org/10.1143/jjap.26.l363
Abstract
Structure determinations of (La1-x Sr x )2CuO4-δ and (La1-x Ba x )2CuO4-δ(x≃0.075) are carried out by single crystal X-ray diffraction. The former is tetragonal with space group I4/m m m, while the latter is orthorhombic with Pccn. Both compounds have the K2NiF4-type layered perovskite structures formed by the linkage of CuO6 octahedra. The orthorhombic distortion in the compound with Ba is found to be mainly described by the rotation of CuO6 octahedra which corresponds to the R 25-mode of cubic perovskite lattice.Keywords
This publication has 10 references indexed in Scilit:
- Electronic band properties and superconductivity inPhysical Review Letters, 1987
- Lattice instability and high- superconductivity inPhysical Review Letters, 1987
- Superconductivity at 93 K in a new mixed-phase Y-Ba-Cu-O compound system at ambient pressurePhysical Review Letters, 1987
- High-Tc Superconductivity of La-Ba-Cu Oxides. II. –Specification of the Superconducting PhaseJapanese Journal of Applied Physics, 1987
- High Tc Superconductors of the Perovskite Structure OxidesJapanese Journal of Applied Physics, 1987
- Possible highT c superconductivity in the Ba?La?Cu?O systemZeitschrift für Physik B Condensed Matter, 1986
- Oxygen defect K2NiF4-type oxides: The compounds
La Sr CuO x 2 +δJournal of Solid State Chemistry, 1981 - Net atomic charges and molecular dipole moments from spherical-atom X-ray refinements, and the relation between atomic charge and shapeActa Crystallographica Section A, 1979
- Über Oxocuprate. XV Zur Kristallstruktur von Seltenerdmetalloxocupraten: La2CuO4, Gd2CuO4Zeitschrift für anorganische und allgemeine Chemie, 1977
- The structure of La2CuO4 and LaSrVO4Journal of Solid State Chemistry, 1973