Synthesis of nearly single-phase (Hg, Pb)Ba2Ca2Cu3O8+δ superconductors

K. Isawa, A. Tokiwa-Yamamoto, M. Itoh, S. Adachi, H. Yamauchi

Research output: Contribution to journalArticle

Abstract

An "encapsulation and single-firing" technique was successfully utilized for the preparation of nearly single-phase polycrystalline samples of (Hg1-xPbx)Ba2Ca2Cu3O8+δ[(Hg, Pb)-1223] with various Pb contents, 0≤x≤0.3. All the as-sintered samples with x≤0.3 exhibited bulk superconductivity at ∼133K. After post-annealing in flowing O2 gas, Tcmag of (Hg, Pb)-1223 decreased with increasing x, e. g., Tcmag ∼124K for the sample with x=0.3. Thus, oxygenated (Hg, Pb)-1223 samples were likely to be in the overdoped region.

Original languageEnglish
Pages (from-to)913-914
Number of pages2
JournalPhysica C: Superconductivity and its applications
Volume235-240
Issue numberPART 2
DOIs
Publication statusPublished - 1994 Dec

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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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