High-T_c Superconductivity in Copper Oxide Compounds

スポンサーリンク

概要

• 論文の詳細を見る

• The effect of substitution of Sr, Cs, Zn, Ni, P, Cl, S, Se or I for Y, Ba, Cu or 0 on the superconducting transition in the Y-Ba-Cu-0 system has been investigated. It was found that the partial replacement of Cu by Ni or Zn strongly depresses the superconducting transition temperature. An extremely sharp transition was observed in YBa_2Cu_30_y/ samples when they were sintered in iodine gas and then annealed in air or flowing oxygen. The result suggests that the Cu and 0 ions play important roles in the occurrence of the high-T_c superconductivity. An anomalous resistivity change, reminiscent of a superconducting transition, was observed around 180 K in a YBa_2Cu_30_y sample which was sintered in selenium gas followed by annealing in oxygen gas.

著者

• TAGUCHI Isao

  島根医科大学

関連論文

• Effect of Barium Doping on High-T_c Superconductor Pb_2Sr_2Y_Ca_Cu_3O_y
• Laser Raman Scattering from Single Crystals of RuS_2 (Pyrite)
• High-T_c Superconductivity in Copper Oxide Compounds
• Characterization of Bi-Doped High-Tc Superconductor SmBa_2Cu_3O_y by X-Ray Diffraction
• Correlation between the Sign of Hall Coefficient and Lattice Instability in Substituted TiSe_2
• Application of a Microcomputer in Resistivity Measuring System
• Crystal Structure and Superconductivity in the La-Ba-Ca-Cu-O System
• On the Electrical Resistivity of TiSe_2 near the Transition Temperature

スポンサーリンク