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Ba0.5Sr0.5CuOz: A New Perovskite Related Structure Which Forms at High Pressure of 6GPa

  • Takeshi Sakurai
  • Nobuyuki Sugii
  • Hirotsugu Takizawa
  • Michiharu Ichikawa
  • Yuji Yaegashi
  • Seiji Adachi
  • Masahiko Shimada
  • H. Yamauchi
Conference paper

Abstract

A perovskite related structure was found in the sample of nominal composition of Ba0.5Sr0.5CuOz which was synthesized at a high pressure of 6GPa, when carbonates were used for the starting materials. The space group for the new structure was found to be Pmmm by means of a transmission electron microscopic observation. The lattice parameters were; a=3.92 Å, b=3.94 Å and c=7.93 Å. The cation ordering between Ba and Sr caused to the double stack of the perovskite blocks.

Keywords

Magnetic Susceptibility Electrical Resistivity Superconducting Cuprates Gold Tube High Pressure Technique 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Tokyo 1993

Authors and Affiliations

  • Takeshi Sakurai
    • 1
    • 3
  • Nobuyuki Sugii
    • 1
  • Hirotsugu Takizawa
    • 2
  • Michiharu Ichikawa
    • 1
  • Yuji Yaegashi
    • 1
    • 4
  • Seiji Adachi
    • 1
  • Masahiko Shimada
    • 2
  • H. Yamauchi
    • 1
  1. 1.Superconductivity Research LaboratoryISTECKoto-ku, Tokyo, 135Japan
  2. 2.Department of Molecular Chemistry and Engineering, Faculty of EngineeringTohoku UniversitySendai, 980Japan
  3. 3.Central Research InstituteMitsubishi Materials CorporationOhmiya, Saitama, 330Japan
  4. 4.Tohoku Electric Power CompanySendai, 981Japan

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