Crystal structure and superconductivity controlled by cation substitution and oxygen annealing in y1-xcaxba2cu3oyand yba2-xlaxcu3oy

Ayako Tokiwa, Yasuhiko Syono, Masae Kikuchi, Reiko Suzuki, Tsuyoshi Kajitani, Norio Kobayashi, Takako Sasaki, Osamu Nakatsu, Yoshio Muto

研究成果: Article査読

76 被引用数 (Scopus)

抄録

The effects of Ca2+substitution for Y3+and La3+substitution for Ba2+in YBa2Cu3O7on the structural and superconducting properties were studied to control the average copper charge. Single-phase tripled perovskites were obtained for 0≦x≦0.2 and 0≦x≦1.0 for Ca and La doped series, respectively. A slight decrease of Tcwith increasing x was found for small x values for both kinds of substituted specimens prepared by furnace cooling in air. Oxygen annealing experiments were also carried out. These suggested that the superconduction in the Y-Ba-Cu-O system cannot be interpreted only by oxygen content or average copper charge.

本文言語English
ページ(範囲)L1009-L1012
ジャーナルJapanese Journal of Applied Physics
27
6A
DOI
出版ステータスPublished - 1988 6
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

フィンガープリント

「Crystal structure and superconductivity controlled by cation substitution and oxygen annealing in y<sub>1-x</sub>ca<sub>x</sub>ba<sub>2</sub>cu<sub>3</sub>o<sub>y</sub>and yba<sub>2-x</sub>la<sub>x</sub>cu<sub>3</sub>o<sub>y</sub>」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。

引用スタイル