Superconductivity in Tl-Bi-Ca-Sr-Cu-O and Tl-Bi-Pb-Ca-Sr-Cu-O Systems
- 1 December 1989
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 28 (12A) , L2192-2195
- https://doi.org/10.1143/jjap.28.l2192
Abstract
The influence of the substitution of Bi for Tl on the formation of the superconducting phases in Tl-Bi-Ca-Sr-Cu-O and Tl-Bi-Pb-Ca-Sr-Cu-O systems was investigated. The superconducting (Tl, Bi)Ca2Sr2Cu3O9 phase with critical temperature of 113 K showing both zero resistivity and diamagnetism is prepared in a Tl-Bi-Ca-Sr-Cu-O system. The crystal structure of this phase is tetragonally symmetric with lattice constants of a=3.813(3) Å and c=15.266(5) Å. The superconducting tetragonal phase of (Tl, Bi, Pb)Ca2Sr2Cu3O9 is also formed in a Tl-Bi-Pb-Ca-Sr-Cu-O system.Keywords
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