Abstract
We report an efficient and highly reproducible method for the preparation of the almost monophasic Tl-1223 phase by partial substitution of Ba2+ into Sr2+ sites in the stoichiometric compositions of (Tl0.6Pb0.2Bi0.2)(Sr2-xBax)Ca2 Cu3O9 (x=0.2-0.3). The as-synthesized samples have a superconducting transition temperature around 115 K which can be further increased up to 122 K after post-annealing at 820°C for 20 h in oxygen.
Original language | English |
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Pages (from-to) | 278-282 |
Number of pages | 5 |
Journal | Physica C: Superconductivity and its applications |
Volume | 222 |
Issue number | 3-4 |
DOIs | |
Publication status | Published - 1994 Mar 20 |
Externally published | Yes |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering