Feeble metallicity and robust semiconducting regime in structurally sensitive Ba(Pb, Sn)O3 alloys

  title={Feeble metallicity and robust semiconducting regime in structurally sensitive Ba(Pb, Sn)O3 alloys},
  author={Ravi Kashikar and Birabar Ranjit Kumar Nanda},
  journal={Applied Physics Letters},
Density functional calculations are carried out to study the symmetry and substitution-driven electronic phase transition in BaPb1−xSnxO3. Two end members BaSnO3 and BaPbO3, are found to be insulating and metallic, respectively. In the latter case, the metallicity arises with the presence of an electron pocket, formed by Pb-s dominated conduction band edge, and a hole pocket formed O-p dominated valence bands. While electron carriers are found to be highly mobile, the hole carriers are… Expand


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  • W. Fu
  • Materials Science
  • 1995
Abstract The crystal structures of the superconducting BaPb 1− x Bi x O 3 and Ba 1− x K x BiO 3 systems are summarized and the role of lead or potassium substitution is discussed. It is pointed outExpand