Synthesis and Characterization of Single-Phase (Tl1-xBix)Sr2Ca2Cu3Oy Ceramics

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Copyright (c) 1990 The Japan Society of Applied Physics
, , Citation Osamu Inoue et al 1990 Jpn. J. Appl. Phys. 29 L763 DOI 10.1143/JJAP.29.L763

1347-4065/29/5A/L763

Abstract

The synthesis and characterization of the "1223" phase in a Tl-(Bi)-Sr-Ca-Cu-O system are described. Almost-single-phase (Tl1-xBix)Sr2Ca2Cu3Oy ceramics (x≦0.25) were obtained by using Tl2O3 and Tl2O as Tl sources. The zero-resistance temperature of the so-called "1223" phase reached 115 K for the nominal composition of Tl2Bi0.25Sr2Ca2Cu3Oy ceramic. The Bi addition stabilized the "1223" phase and improved the superconductivity.

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10.1143/JJAP.29.L763