Preparation of Ceramics (RCa)Ba_2Cu_4O_8 (R=Y, Ho, Er, Tm and Yb) by Conventional Solid-State Reaction

スポンサーリンク

概要

• 論文の詳細を見る

• Bulk superconductors of Ca-doped RBa_Cu_4O_8 (R124, R=Y, Ho, Er, Tm and Yb) were synthesized at 1 atm oxygen pressure. Although little undoped Yb124 material was obtained by a conventional solid-state reaction method, a single-phase sample was obtained upon Ca doping. The solubility limit of Ca increased with decreasing tonic radius of R. The zero-resistant temperature (T_<cO>) for Ca-doped R124 increased with increasing Ca content. The highest T_<cO> (=85.4K) was obtained for the 5% Ca-doped Yb124 sample. In addition, T_<cO> of undoped Yb124 ceramics was estimated to be about 80 K from the result for Ca-doped samples.

• 社団法人応用物理学会の論文
• 1996-08-01

著者

• Tatsumi Masakazu

  Department Of Engineering Kansai University

• Yamamoto Seika

  Department Of Engineering Kansai University

• NISHI Miho

  Department of Engineering, Kansai University

• SHIGETA Takenori

  Department of Engineering, Kansai University

• Nishi Miho

  Department Of Engineering Kansai University

• Shigeta Takenori

  Department Of Engineering Kansai University

関連論文

• Preparation of Ceramics (RCa)Ba_2Cu_4O_8 (R=Y, Ho, Er, Tm and Yb) by Conventional Solid-State Reaction

スポンサーリンク