Superconductor with Tc = 117 K in the Bi-Pb-Sr-Ca-Cu-O system

Jun Takada, Hitoshi Kitaguchi, Toshio Egi, Kiichi Oda, Yosinari Miura, Hiromasa Mazaki, Yasunori Ikeda, Zenji Hiroi, Mikio Takano, Yoichi Tomii

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)


The superconducting properties of the so-called 2223 phase in the Pb-Bi-Sr-Ca-Cu-O system have been studied as a function of composition and heat treatment. Tc = 115-117 K has been attained quite reproducibly for starting compositions of Pb/ (Bi+Pb) ≥ 0.30. An increase in the c-axis length from 37.10 Å to 37.21 Å accompanies the rise in Tc from 105 K to 117 K. We suggest that a considerable portion of Pb is located at the Sr-site as seen in Bi2-x+yPbxSr2-yCu1+y/4Oz.

Original languageEnglish
Pages (from-to)249-253
Number of pages5
JournalPhysica C: Superconductivity and its applications
Issue number3-4
Publication statusPublished - Sept 15 1990

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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