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Epitaxial Growth of YBCO/MgO/YBCO Structure

  • S. Tanaka
  • H. Nakanishi
  • T. Matsuura
  • K. Higaki
  • H. Itozaki
  • S. Yazu

Abstract

A Y1Ba2Cu3O7−y(YBCO)/MgO/Y1Ba2Cu3O7−y structure on a MgO(100) substrate was made and its crystallographic structure was investigated by cross-sectional transmission electron microscopy (TEM). A MgO ultra-thin film with (100) orientation as an intermediate layer was obtained on each of the (001) and (100) YBCO thin films at the substrate temperature of about 400°C. From the results of cross-sectional TEM observation of the YBCO/MgO/YBCO structure, it was found that the thickness of the MgO can be reduced to 5nm at a minimum. In the sample with a MgO thickness of 5nm, sharp interfaces were observed without any disrupted portion.

Keywords

Epitaxial Growth Sharp Interface YBCO Film RHEED Pattern YBCO Thin Film 
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 1991

Authors and Affiliations

  • S. Tanaka
    • 1
  • H. Nakanishi
    • 1
  • T. Matsuura
    • 1
  • K. Higaki
    • 1
  • H. Itozaki
    • 1
  • S. Yazu
    • 1
  1. 1.Itami Research LaboratoriesSumitomo Electric Industries, Ltd.Itami, 664Japan

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