Characterization of the High-<I>T</I><SUB>c</SUB> Superconductor Y–Ba–Cu Oxide —Critical Current and Crystal Structure—

• Kagoshima Seiichi

  Department of Pure and Applied Sciences, University of Tokyo

• Hikami Shinobu

  Department of Pure and Applied Sciences, University of Tokyo

• Nogami Yoshio

  Department of Pure and Applied Sciences, University of Tokyo

• Hirai Takashi

  Department of Pure and Applied Sciences, University of Tokyo

• Kubo Koichi

  Department of Pure and Applied Sciences, University of Tokyo

抄録

Critical currents are measured in the title material. At 9.5 K, where an apparent resistance is zero, the critical-current density J_c is found to be about 1.7 A/cm² in a sintered sample. For currents smaller than J_c the sample resistivity is less than 2.3 μΩ·cm. By X-ray diffraction the crystal structure is found to be essentially of a perovskite type. Its unit cell composed of eight units of the perovskite structure has a face-centered tetragonal symmetry with the lattice parameters a=b=7.83±0.02 Å and c=7.72±0.03 Å.

収録刊行物

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 26 (4), L318-L319, 1987

  社団法人応用物理学会

詳細情報

• CRID: 1572543027197407488
• NII論文ID: 110003926085
• NII書誌ID: AA10650595
• 本文言語コード: en
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