Normal and superconducting properties of Pb2Sr2Y1-xCaxCu3O8+δ I: Dependence on the Ca concentration

Yoji Koike, Masahiro Masuzawa, Takashi Noji, Hiromu Sunagawa, Hisashi Kawabe, Norio Kobayashi, Yoshitami Saito

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Normal and superconducting properties of ceramic samples of Pb2Sr2Y1-xCaxCu3O8+δ have been investigated in the wide compositional range of 0≦x≦0.8 and δ∼0. The superconducting transition temperature Tc appears in samples of x≧0.15 and takes a maximum value (Tc, onset=83 K, Tc, zero=75 K) at x=0.5. This is discussed in relation to x-dependences of the electrical resistivity, the Hall coefficient, the magnetic susceptibility, the upper critical field and the activation energy of the resistive tail in a magnetic field. It is found that these properties of Pb2Sr2Y1-xCaxCu3O8+δ are very similar to those of other high-Tc superconductors with pyramidal CuO2 layers such as Bi2Sr2Ca1-xYxCu2O8+δ.

Original languageEnglish
Pages (from-to)130-138
Number of pages9
JournalPhysica C: Superconductivity and its applications
Issue number1-2
Publication statusPublished - 1990 Sep 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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