Crystal structure and superconductivity in La1.9Bi0.1CuO4+δ with excess oxygen. Superconductivity in the tetragonal phase

Masatsune Kato, Takaaki Aoki, Takashi Noji, Yasuhiro Ono, Yoji Koike, Tomoyuki Hikita, Yoshitami Saito

研究成果: Article査読

8 被引用数 (Scopus)

抄録

The relationship between the crystal structure and superconductivity has been investigated for La1.9Bi0.1CuO4+δ with excess oxygen. A phase diagram in the T-δ plane is given for this system, where the phase separation observed in La2CuO4+δ is suppressed. For very small values of δ the crystal structure is orthorhombic, and an orthorhombic-tetragonal phase transition occurs markedly at δ∼0.03 in the measured temperature range between 13 and 293 K. A superconducting phase is observed in the range of 0.04≤δ≤0.11. This is clear evidence that high-Tc superconductivity also appears in the tetragonal phase.

本文言語English
ページ(範囲)188-196
ページ数9
ジャーナルPhysica C: Superconductivity and its applications
217
1-2
DOI
出版ステータスPublished - 1993 11 10

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

「Crystal structure and superconductivity in La<sub>1.9</sub>Bi<sub>0.1</sub>CuO<sub>4+δ</sub> with excess oxygen. Superconductivity in the tetragonal phase」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