Electronic structure of the BaA1-xBxO3 (A, B = Pb, Bi, Sn, Sb) alloy systems. Implications for superconductivity

  • Julien J
  • Papaconstantopoulos D
  • Singh D
 et al. 
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Abstract

Coherent potential approximation studies of the electronic structure of the BaA1-xBxO3(where A and B are different combinations of the elements Pb, Bi, Sn and Sb) alloy systems have been performed with accurate tight-binding hamiltonians. The calculations show how semiconducting BaSnO3evolves into a metal upon alloying with Sb or Bi. Common characteristics of the densities of states are pointed out. Using the rigid muffin-tin approximation an analysis of the superconducting properties is given. © 1994.

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