Superconducting properties of Bi2Sr2CaCu2O8+δ annealed under high oxygen pressure

M. Kato, S. Kumakura, T. Noji, Y. Koike, Y. Saito

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We have measured electrical resistivity and AC susceptibility of Bi2Sr2CaCu2O8+δ with 0.20 ≦ δ ≦ 0.34, annealed under high oxygen pressure. With increasing δ, the superconducting transition temperature Tc decreases for 0.20 ≦ δ ≦ 0.27 and is almost constant, ∼45K, for 0.27 ≦ δ ≦ 0.34. The δ dependence of Tc may be related to those of the average valences of both Cu and Bi ions.

Original languageEnglish
Pages (from-to)1943-1944
Number of pages2
JournalPhysica B: Physics of Condensed Matter
Volume194-196
Issue numberPART 2
DOIs
Publication statusPublished - 1994 Feb 2

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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