High pressure study on the superconducting transition temperature and Hall coefficient of Ba1-xKxBiO3 up to 8 GPa

H. Takahashi, N. Môri, Y. Nagata, S. Nakamura, T. Uchida, J. Akimitsu, Y. Tokura

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The superconducting transition temperature (Tc) of Ba0.62K0.38Bio3 (Tc=30 K) has been measured under high pressure up to 8 GPa. It is observed that Tc increases initially with pressure, as reported by Uwe et al., Shirber et al. and Huang et al., but decreases above 4 GPa. The Hall coefficient of Ba0.62K0.38BiO3 has been measured up to 1.2 GPa. The absolute value of the Hall coefficient decreases with pressure by 10% GPa, the value of which is almost the same as that obtained in most CuO-based high-temperature superconductors.

Original languageEnglish
Pages (from-to)485-488
Number of pages4
JournalPhysica C: Superconductivity and its applications
Issue number3-4
Publication statusPublished - Jun 1 1993


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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