Structural Variations on Superconductor Tl-Ba-Ca-Cu-O Oxides
- 1 May 1988
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 27 (5A), L817
- https://doi.org/10.1143/jjap.27.l817
Abstract
Two crystal structures for c 105 K Tl-Ca-Ba-Cu-O oxides, with lattice parameters a=b=5.44 Å, c=29.32 Å, and a=b=5.44 Å, c=35.68 Å, isostructural with Bi2CaSr2Cu2O8+x and Bi2Ca2Sr2Cu3O10+x , respectively, were found by electron microscopic observation. The stacking arrangements for the CuO2-Ca-CuO2 slabs and BaO-TlO-BaO slabs in their structures result in a series of phases and stacking disorder in this oxide system. Weak long-range-order, taking place in the BaO-TlO-TlO-BaO slabs in the a-c plane projection, was observed.Keywords
This publication has 4 references indexed in Scilit:
- Bulk superconductivity at 120 K in the Tl–Ca/Ba–Cu–O systemNature, 1988
- A New High-Tc Oxide Superconductor without a Rare Earth ElementJapanese Journal of Applied Physics, 1988
- Superconductivity at 93 K in a new mixed-phase Y-Ba-Cu-O compound system at ambient pressurePhysical Review Letters, 1987
- Possible highT c superconductivity in the Ba?La?Cu?O systemZeitschrift für Physik B Condensed Matter, 1986