Ba addition to the high-T c phase in the Bi‒Pb‒Sr‒Ca‒Cu‒O system

Jun Takada, Masashi Fujiwara, Tokuro Nanba, Toshio Egi, Yasunori Ikeda, Zenji Hiroi, Mikio Takano, Hiromasa Mazaki

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6 Citations (Scopus)

Abstract

Ba-addition effects on the superconducting properties and the formation of the high-Tc phase in the Bi{single bond}Pb{single bond}Sr{single bond}Ca{single bond}Cu{single bond}O system have been studied. Samples with nominal compositions of Bi:Pb:(Sr1-xBax):Ca:Cu=0.96:0.24:1.0:1.1:1.6 (x=0 to 0.3) were heated at 850°C in air. The Ba-addition promotes the formation of the high-Tc phase. Tc increases from 106 K for Ba-free samples to 112 K for samples with low Ba contents. The Ba-addition leads to an increase in the c-axis length from 37.10 to 37.20 Å. The Ba-substitution site has been discussed on the basis of the results concerning the Ba-doped 2201 phase.

Original languageEnglish
Pages (from-to)102-103
Number of pages2
JournalPhysica C: Superconductivity and its applications
Volume190
Issue number1-2
DOIs
Publication statusPublished - Dec 2 1991

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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