As-grown superconducting Bi(-Pb)-Sr-Ca-Cu-O films by electron cyclotron resonance plasma sputtering

H. Masumoto, T. Goto, T. Hirai

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27 Citations (Scopus)

Abstract

Bi(-Pb)-Sr-Ca-Cu-O thin films were prepared on MgO(100) single-crystal substrates by electron cyclotron resonance (ECR) plasma sputtering at substrate temperatures from room temperature to 590°C. Pb-doped superconducting as-grown films were obtained above 560°C. The Tc values of the Pb-doped films prepared at 570-590°C were 58-64 K which increased with increasing substrate temperature. Pb-undoped as-grown films obtained at 590°C showed superconduction (Tc =30 K), but the films obtained below 580°C were semiconductors. The grain sizes and contents of the 37 Å phase (110 K phase) were increased by the Pb doping into the as-grown Bi-Sr-Ca-Cu-O films.

Original languageEnglish
Pages (from-to)498-500
Number of pages3
JournalApplied Physics Letters
Volume55
Issue number5
DOIs
Publication statusPublished - 1989

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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