Lead-NMR study of BaPb1-x(Sb/Bi)xO3

F. J.M. Benschop, H. B. Brom, H. W. Zandbergen, R. J. Cava

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Recent Mössbauer experiments on BaPb1-xSbxO3 revealed only the presence of Sb(V), while in BaPb1-xBixO3 in the semiconducting phase the Bi-charge disproportionation is well established. We find a similar asymmetry in the NMR spectra. The NMR spectra on semiconducting BaPb1-xSbxO3 clearly show the charge disproportionation of lead, while in BaPb1-xBixO3 in the semiconducting phase only Pb(IV) is observed. The metallic phases of the Sb-doped compounds show one lead resonance line. Based on the NMR spectra and the elemental analysis a phase diagram for BaPb1-xSbxO3 is proposed with a miscibility gap in the range of 0.35 < x < 0.50.

Original languageEnglish (US)
Pages (from-to)2527-2528
Number of pages2
JournalPhysica C: Superconductivity and its applications
Issue numberPART 4
StatePublished - Dec 1994
Externally publishedYes

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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