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

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32 Citations (Scopus)

Abstract

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
Volume170
Issue number3-4
DOIs
Publication statusPublished - Sep 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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    Takada, J., Kitaguchi, H., Egi, T., Oda, K., Miura, Y., Mazaki, H., Ikeda, Y., Hiroi, Z., Takano, M., & Tomii, Y. (1990). Superconductor with Tc = 117 K in the Bi-Pb-Sr-Ca-Cu-O system. Physica C: Superconductivity and its applications, 170(3-4), 249-253. https://doi.org/10.1016/0921-4534(90)90319-A