Superconducting properties of Pb2Sr2Y1−xCaxCu3O8+δ

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

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Superconducting properties of ceramic samples Pb2Sr2Y1−xCaxCu3O8+δ have been investigated in the wide composition-range of 0≦x≦0.8 and 0≦0<2. For samples of δ=0, Tc appears with compositions of x≧0.15 and takes a maximum at x=0.5. This is discussed in relation to x dependences of the electrical resistivity. the Hall coefficient, the upper critical field and the activation energy of the resistance tail in magnetic fields. As for samples of δ≠0, the superconductivity in each sample with different x is suppressed with increasing δ. which is in good correspondence to the increase in resistivity and Hall coefficient with increasing δ, but is contradictory to the speculation by Ohta and Maekawa.

Original languageEnglish
Pages (from-to)1555-1556
Number of pages2
JournalPhysica B: Condensed Matter
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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