Effects of oxygen deficiency and substitution for copper in Nd2-xCexCuO4-δ

Yoji Koike, Akihiro Kakimoto, Masaru Yoshida, Hiroyuki Inuzuka, Takashi Noji, Yoshitami Saito

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Effects of oxygen deficiency on the superconductivity in Nd2-xCexCuO4-δ have been systematically investigated. The value of Tc strongly depends on x and δ. Over-reduction is found to decrease Tc because of randomness and/or over-doping of carriers. Effects of partial substitution of Ni, Zn and Ga for Cu have been also studied. The Ni substitution markedly decreases Tc , while the Ga substitution does not. This is discussed relating to the antiferromagnetic phase transition in samples with smaller x.

Original languageEnglish
Pages (from-to)1665-1666
Number of pages2
JournalPhysica B: Condensed Matter
Volume165-166
DOIs
Publication statusPublished - 1990 Jan 1

ASJC Scopus subject areas

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

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