Preparation of the high-Tcsuperconductor Pb2Sr2Y0.5Ca0.5Cu3O8+δwith zero resistance at 75 K

Masahiro Masuzawa, Takashi Noji, Yoji Koike, Yoshitami Saito

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21 Citations (Scopus)

Abstract

Good quality samples of the high-Tcsuperconductor Pb2Sr2Y0.5Ca0.5Cu3O8+δhave been prepared by solid-state reaction under low oxygen pressure and adequate post-annealing in flowing nitrogen gas. The best sample shows metallic temperature dependence of the resistivity above Tc, an onset of the superconducting transition at 83 K and zero resistance at 75 K. The adequate post-annealing, which is considered to decrease crystalline disorder, is effective in attaining good superconducting quality.

Original languageEnglish
Pages (from-to)L1524-L1526
JournalJapanese journal of applied physics
Volume28
Issue number9 A
DOIs
Publication statusPublished - 1989 Sep 1

Keywords

  • Annealing effect
  • Electrical resistivity
  • High-7oxide superconductor
  • Pb-Sr-Y-Ca-Cu-O
  • PbSrACu0
  • PbSrYCaCu0
  • Superconducting transition temperature

ASJC Scopus subject areas

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

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