Preparation of Bi-Sr-Ca-Cu-O superconducting films by CVD

Hisanori Yamane, Hideyuki Kurosawa, Hideo Iwasaki, Toshio Hirai, Norio Kobayashi, Yoshio Muto

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

Bi-Sr-Ca-Cu-O (BSCCO) films were prepared on MgO(100) single-crystal substrates at 770ŶC by chemical vapor deposition using ॆ-diketone metal chelates of Sr, Ca and Cu and Bi-triethoxide. The films were Bi2(Sr, Ca)3Cu2Ox (c=30 Ɨ) with c-axis orientation. The films showed superconducting transition onset at 90 K with zero resistivity at 74 K. The formation of films having high-Tc phase (Bi2(Sr, Ca)4Cu3Ox, c=37 Ɨ) was achieved when the films were annealed at 890ŶC for 5 h under 760 Torr of oxygen. The resistivity of the annealed films began to drop sharply at around 110 K and reached zero at 77 K.

Original languageEnglish
Pages (from-to)L827-L830
JournalJapanese journal of applied physics
Volume28
Issue number5A
DOIs
Publication statusPublished - 1989 May

Keywords

  • Bismuth alkoxide
  • High-7“ phase
  • →Bi-Sr-Ca-Cu-O→system
  • →CVD
  • →metal→/?-diketonate
  • →superconducting oxide film

ASJC Scopus subject areas

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

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