As-grown superconducting Bi-Sr-Ca-Cu-O thin films by coevaporation

T. Satoh, T. Yoshitake, S. Miura, J. Fujita, Y. Kubo, H. Igarashi

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)

Abstract

Superconducting Bi-Sr-Ca-Cu-O thin films have been prepared on (100) MgO substrates at about 600°C by coevaporation. The c-axis lattice constant of this system was controlled to the values of 24-43 Å by changing film composition. Superconducting transition temperatures of these films were affected by substrate temperature and by a post-deposition annealing at a low temperature. The highest zero resistance temperature (Tc, zero) of the as-grown Bi2(Sr,Ca)3Cu2Ox film was 79 K. The best Bi2(Sr, Ca)4Cu3Ox film showed an onset temperature of 105 K and Tc, zero zero of 78 K after annealing at 400°C for 1 h.

Original languageEnglish
Pages (from-to)702-704
Number of pages3
JournalApplied Physics Letters
Volume55
Issue number7
DOIs
Publication statusPublished - 1989 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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