Preparation and characterization of nearly domain free 123-oxide showing a superconducting transition width of ∼1.1K
- Additional Document Info
- View All
YBa2Cu3O7-∂ has been prepared by coprecipitation of the corresponding metal ions by hydroxy-carbonate method. A nearly stoichiometric 123-oxide is obtained after a single firing step in flowing O2. This oxide shows a zerotransition temperature of 92.6 K and a transition width of ∼1.1 K. The oxides prepared at 1173 K and 12 hours of heating in flowing oxygen yield nearly twin-domain-free superconductor showing no other defect structure. We have investigated the preparation of this oxide under various preparative conditions including different pH values of precipitation. © 1990.
author list (cited authors)
Clearfield, A., Ram, R., Wang, R., & Dufner, D. C.