Preparation of new high-Tcsuperconducting oxide Bi-Sr-Ca-Cu-O thin film by electron beam deposition technique

Kenichi Kuroda, Masashi Mukaida, Masafumi Yamamoto, Shintaro Miyazawa

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30 Citations (Scopus)

Abstract

Thin films of Bi-Sr-Ca-Cu-O superconducting oxide were prepared by electron beam deposition of Bi, SrF2CaF2and Cu on (100) MgO substrates followed by annealing in oxygen gas flow. Onset transition temperature is 110 K, and resistance drops to less than 5% of the value in the temperature range Tc+4 K, although zero resistance is observed at 60 K. Between 110 K and 60 K, there exist at least 2 resistance drops, indicating multiphase superconductors with different Tcs. X-ray diffraction analysis reveals that the films are highly oriented so that the c-axis is normal to the substrate and has a length of 30.605°.

Original languageEnglish
Pages (from-to)L625-L627
JournalJapanese Journal of Applied Physics
Volume27
Issue number4A
DOIs
Publication statusPublished - Apr 1988
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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