Structural Properties of a High-Tc Superconductor Ho-Ba-Cu Oxide Studied by Transmission Electron Microscopy
- 1 May 1987
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 26 (5A) , L848
- https://doi.org/10.1143/jjap.26.l848
Abstract
The crystal structure of the Ho-Ba-Cu oxide, which is responsible for high T c superconductivity, has been investigated by transmission electron microscopy. The lattice belongs to an orthorhombic system with lattice parameters a=3.83 Å, b=3.90 Å and c=11.8 Å. It is an isomorphous structure of the high-T c superconductor Y-Ba-Cu oxide. Micro twinning of crystal is observed under the high spatial resolution, that is 3 Å. The twinned crystals could be observed with incident electron beam parallel to a, b and c-axes of the crystal. It is concluded that the Cu layers expand in the a-b planes even across the twin boundary without any kink.Keywords
This publication has 6 references indexed in Scilit:
- X-Ray and Electron Microscopic Study of a High Temperature Superconductor Y0.4Ba0.6CuO2.22Japanese Journal of Applied Physics, 1987
- High Tc Magnetic Superconductor: Ho-Ba-Cu OxideJapanese Journal of Applied Physics, 1987
- High Transition Temperature Superconductor: Y-Ba-Cu OxideJapanese Journal of Applied Physics, 1987
- Magnetic and Structural Properties of the High-Tc Superconductor Ho-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
- Possible highT c superconductivity in the Ba?La?Cu?O systemZeitschrift für Physik B Condensed Matter, 1986