Effects of partial substitution on Tc and low-temperature structural phase transition in La2-xBaxCuO4

Yoji Koike, Tsutomu Kawaguchi, Syoichi Hosoya, Naoki Watanabe, Takashi Noji, Yoshitami Saito

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Effects of partial substitution on the local minimum of Tc near x = 0.125 and on the resistance anomaly relating to the low-temperature structural phase transition have been investigated in La2-xBaxCuO4. The local minimum shifts to x = 0.145 in La1.98-xCe0.02BaxCuO4. The range of x, where the resistance anomaly appears, shifts to that of larger x values, too. These suggest that the structural phase transition is due to the optimum hole concentration of 0.125 per Cu atom rather than the Ba content x = 0.125. Experiments for La1.98-xK0.02BaxCuO4 are also described.

Original languageEnglish
Pages (from-to)791-792
Number of pages2
JournalPhysica C: Superconductivity and its applications
Volume185-189
Issue numberPART 2
DOIs
Publication statusPublished - 1991 Dec 1

ASJC Scopus subject areas

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

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