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Preparation of 107K Superconducting Thin Film in Bi-Sr-Ca-Cu-O System by Coevaporation

  • T. Yoshitake
  • T. Satoh
  • Y. Kubo
  • H. Igarashi
Conference paper

Abstract

Thin films of Bi2.0(Sr1 -xCax)3.3Cu2.3Oy system were prepared on (100)MgO substrates by coevaporation of Bi2O3, Sr-Ca alloy and Cu metal, and effects of film composition and annealing condition on superconducting properties were investigated. High-Tc phase was formed for the films with relatively high Ca composition and with post-deposition annealing at high temperature. The superconducting transition temperatures of both low-Tc phase and high-Tc phase decreased with increasing Ca composition. And the films with x = 0.51 showed the highest superconducting transition temperature of 107K.

Keywords

Mutual Solubility Annealed Film Formation Range Ideal Chemical Composition High Superconducting Transition Temperature 
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 Japan 1989

Authors and Affiliations

  • T. Yoshitake
    • 1
  • T. Satoh
    • 2
  • Y. Kubo
    • 1
  • H. Igarashi
    • 1
  1. 1.Fundamental Research LaboratoriesNEC CorporationMiyamae-ku, Kawasaki, 213Japan
  2. 2.Resources and Environment Protection Research LaboratoriesNEC CorporationMiyamae-ku, Kawasaki, 213Japan

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