Fabrication of Superconducting Y-Ba-Cu Oxide Through an Improved Diffusion Process
- 1 August 1988
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 27 (8A) , L1501-1503
- https://doi.org/10.1143/jjap.27.l1501
Abstract
The formation of the YBa2Cu3O7-y layer has been investigated by a modified diffusion process as a basic research for high-T c superconductor fabrication. The starting materials were Y2BaCuO5 and barium cuprate (Ba:Cu=3:5), unlike the ordinary sintering technique. A dense layer of YBa2Cu3O7-y was formed on Y2BaCuO5 substrate, and the starting barium cuprate layer was fully converted to the superconducting phase. X-ray diffractometry revealed that the layer consisted of an orthorhombic crystal structure. A zero resistance of 91.5 K and a critical current density of 1900 A/cm2 (77 K, 0 T) were achieved in the layer.Keywords
This publication has 12 references indexed in Scilit:
- Preparation of High-Tc Tl-Ba-Ca-Cu-O SuperconductorsJapanese Journal of Applied Physics, 1988
- 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
- Melt-processible rare earth-Ba-Cu-O superconductors based on molten Ba-Cu oxidesApplied Physics Letters, 1987
- Ba2YCu3Ox Crystal Formed by Peritectic ReactionJapanese Journal of Applied Physics, 1987
- Critical Current Density of Y–Ba–Cu Oxide WiresJapanese Journal of Applied Physics, 1987
- Critical Current Density of Wire Type Y-Ba-Cu Oxide SuperconductorJapanese Journal of Applied Physics, 1987
- High Tc Magnetic 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
- Preparation of Y-BA-CU Oxide Superconducting Composite Tapes by a Diffusion ProcessMRS Proceedings, 1987