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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