Characterization of the highc superconductor Y-Ba-Cu Oxide –critical current and crystal structure–

Seiichi Kagoshima, Shinobu Hikami, Yoshio Nogami, Takashi Hirai, Koichi Kubo

Research output: Contribution to journalArticle

Abstract

Critical currents are measured in the title material. At 9.5 K, where an apparent resistance is zero, the critical-current density c is found to be about 1.7 A/cm2 in a sintered sample. For currents smaller than 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 =7.83±0.02 Å and =7.72±0.03 Å.

Original languageEnglish
Pages (from-to)L318-L319
JournalJapanese Journal of Applied Physics
Volume26
Issue number4 A
DOIs
Publication statusPublished - Apr 1987

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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