Synthesis of high-purity (CaxLa1.00-x)(Ba1.75-xLa0.25+x) Cu3Oz tetragonal superconductor by an aqueous solution technique using citric acid

Y. Sato, M. Kakihana, V. Petrykin, M. Osada, H. Yasuoka, A. Yamaguchi, Y. Tanaka

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6 Citations (Scopus)

Abstract

A simple aqueous solution technique utilizing citric acid as a complexant was applied to prepare (CaxLa1.00-x)(Ba1.75-xLa0.25+x) Cu3Oz. The combined results of X-ray diffraction and Raman scattering analysis confirmed the single-phase character of polycrystalline sample for the whole range of x from 0.0 to 1.0. The Tc onset values, determined precisely from the complex magnetic susceptibility measurements, values increased from 40.6 K for x = 0.0 to 78.7 K for x = 0.4, remained almost constant at 80 K between x = 0.5 and = 0.7, and then decreased to 44.6 K for x = 1.0.

Original languageEnglish
Pages (from-to)260-264
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume357-360
Issue numberSUPPL. 2
DOIs
Publication statusPublished - 2001 Aug
Externally publishedYes

Keywords

  • (CaLa)(BaLa) CuO
  • AC complex susceptibility
  • Amorphous citrate method
  • Raman scattering

ASJC Scopus subject areas

  • Condensed Matter Physics

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