Improvement of phase purity and accelerated formation of the Tl-1223 phase from the stoichiometric compositions (Tl0.6Pb0.2Bi0.2) (Sr2-xBax)Ca2Cu3O9 (x=0.2-0.3)

R. S. Liu, S. F. Wu, D. S. Shy, S. F. Hu, D. A. Jefferson

Research output: Contribution to journalArticle

26 Citations (Scopus)

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 languageEnglish
Pages (from-to)278-282
Number of pages5
JournalPhysica C: Superconductivity and its applications
Volume222
Issue number3-4
DOIs
Publication statusPublished - 1994 Mar 20

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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