Superconductivity and crystal structure of Pb(Ba,Sr)2(Ln,Ca)Cu3Oy and Pb(Ba,Sr)2(Ln,Ce)2Cu3Oy(Ln: lanthanoid) with (Pb,Cu) double layers

Ayako Tokiwa, Yasuhiko Syono, Takeo Oku, Masayasu Nagoshi

研究成果: Article査読

3 被引用数 (Scopus)

抄録

Pb(Ba,Sr)2(Ln,Ca)Cu3Oy (Pb2212, y=7.0-8.4) and Pb(Ba,Sr)2(Ln,Ce)2Cu3Oy (Pb2222, y=9.0-10.4) were synthesized, and crystal structure, phase transition and superconductivity were studied. The lanthanoid contraction was clearly observed in a relationship of 4f-electron number of Ln3+ versus cell volume of Pb2212, consistent with constant oxygen content for all of the lanthanoid substitutions. Transition temperature from oxygen rich phase to poor one was almost constant to be 580°C, in contrast to variation of the ortho-tetra transition temperature in Ba2LnCu3Oy.

本文言語English
ページ(範囲)619-620
ページ数2
ジャーナルPhysica C: Superconductivity and its applications
185-189
PART 1
DOI
出版ステータスPublished - 1991 12 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

「Superconductivity and crystal structure of Pb(Ba,Sr)<sub>2</sub>(Ln,Ca)Cu<sub>3</sub>O<sub>y</sub> and Pb(Ba,Sr)<sub>2</sub>(Ln,Ce)<sub>2</sub>Cu<sub>3</sub>O<sub>y</sub>(Ln: lanthanoid) with (Pb,Cu) double layers」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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