Dependence of structural and superconducting properties of as-grown Bi2Sr2Ca1Cu2Ox films on low temperature annealing

S. Miura, T. Yoshitake, N. Shohata, T. Satoh

研究成果: Article査読

13 被引用数 (Scopus)

抄録

Epitaxial films of the Bi2Sr2Ca1Cu2Ox phase were prepared on MgO(100) substrates in situ by RF magnetron sputtering. The as-grown film showed a Tc onset of 92 K and a Tc end of 82 K. The superconducting properties and the c-axis lattice constant could be varied reversibly by annealing the film in various atmosphere at below 400°C. When the c-axis lattice constant was increased by about 0.2 Å, the Tc onset increased from 60 K to 93 K, suggesting that the Tc increased with decreasing oxygen content in the film. However further decrease of the oxygen content in the film caused the degradation of the Tc when the films were annealed in vacuum at above 250°C.

本文言語English
ページ(範囲)241-246
ページ数6
ジャーナルPhysica C: Superconductivity and its applications
165
3-4
DOI
出版ステータスPublished - 1990 2 1
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • エネルギー工学および電力技術
  • 電子工学および電気工学

フィンガープリント

「Dependence of structural and superconducting properties of as-grown Bi<sub>2</sub>Sr<sub>2</sub>Ca<sub>1</sub>Cu<sub>2</sub>O<sub>x</sub> films on low temperature annealing」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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