Superconductivity in the Ba1-xKxBiO3 system

A. N. Baranov, D. C. Kim, J. S. Kim, H. R. Kang, Y. W. Park, J. S. Pshirkov, E. V. Antipov

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10 Citations (Scopus)

Abstract

For the first time, superconductivity in the Ba1-xKxBiO3 system has been investigated in the whole region of cubic phase from x = 0.37 up to x = 1. Samples were synthesized using the high pressure and high temperature technique. The superconducting transition temperature Tc of Ba1-xKxBiO3 samples determined from dc susceptibility measurements monotonously goes down with increasing x from the well known Ba0.63K0.37BiO3 composition with Tc = 30.4 K to Ba0.24K0.76BiO3 with very low diamagnetic signal at nearly 3 K. However, following this, we have found an increase of Tc up to 9 K for x = 1 according to KBiO3 nominal composition.

Original languageEnglish
Pages (from-to)414-417
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Volume357-360
DOIs
Publication statusPublished - Aug 2001
Externally publishedYes

Keywords

  • Bismuthates
  • High pressure synthesis
  • Substitution
  • Superconductivity

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