Superconductivity of Tl-Sr-Ca-Cu-O System in Relation to Tl-Ba-Ca-Cu-O and Bi-Sr-Ca-Cu-O Systems
- 1 November 1988
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 27 (11R), 2062-2064
- https://doi.org/10.1143/jjap.27.2062
Abstract
It was found that Tl-Sr-Ca-Cu-O system gives rise to at least two superconducting phases, a high-T c phase at 100 K and a low-T c phase at about 75 K. The two phases are isostructural to those of Bi-Sr-Ca-Cu-O system. Comparing the T c's and crystal structures of the Tl and Bi systems, it was suggested that T c is mainly determined by the combination of two alkaline earth elements, i.e., Sr/Ca or Ba/Ca, when the repetition unit in the layered perovskites is equal.Keywords
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