Effects of Ba doping on Tc and vibration features of (Pb, Cd)-1212 cuprates

W. J. Yu, Zh Q. Mao, C. Y. Xu, L. Yang, M. L. Tian, L. Shi, G. E. Zhou, Y. H. Zhang

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

Samples of nominal composition (Pb0.5Cd0.5) (Sr2-xBax) (Ca0.5Y0.5)Cu2Oy (0≤x≤0.5) synthesised at 920°C in air are investigated. XRD shows the samples to exhibit the tetragonal 1212-phase. The lattice parameters, the width of the Raman peak for the apical-0(2) vibration mode and the infrared absorption peak for the 0(3) vibration mode, all increase with increasing Ba doping level. In the doping range (0.0≤x≤0.5), there is a transition from insulator to superconductor. The Raman shift and the wavenumber of the infrared absorption for the phonon peaks appear to change regularly.

Original languageEnglish (US)
Pages (from-to)151-154
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume234
Issue number1-2
DOIs
StatePublished - Dec 1 1994

All Science Journal Classification (ASJC) codes

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

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