As-grown crystallized thin film of Bi-Sr-Ca-Cu-O and its low-temperature annealing effect

S. Miura, A. Nakai, Y. Shimakawa, T. Yoshitake, Y. Miyasaka, N. Shohata, T. Satoh

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

The as-grown crystallized films of low Tc phase (T c∼80 K) in a Bi-Sr-Ca-Cu-O system were prepared by rf magnetron sputtering and were annealed in argon or oxygen atmosphere below 500°C. Superconducting properties and the c-axis lattice constant varied according to the annealing temperature and atmosphere. These results suggest that the oxygen content in the film is varied by low-temperature annealing and that the variation of oxygen content affects the superconducting and structural properties. By cooling the sample in the chamber in 760 Torr oxygen, the as-grown film with Tc end at 74 K was obtained.

Original languageEnglish
Pages (from-to)1474-1476
Number of pages3
JournalApplied Physics Letters
Volume54
Issue number15
DOIs
Publication statusPublished - 1989 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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