Properties of alkaline-earth-filled skutterudite antimonides:A(Fe,Ni)4Sb12(A=Ca, Sr, and Ba)

Authors:
  • DSDavid J. Singh
    David J. Singh
  • MDMao-Hua Du
    Mao-Hua Du

Abstract
Properties of alkaline-earth-filled skutterudite antimonides based on Fe and Ni are studied using first-principles calculations and Boltzmann transport theory. We find heavy conduction bands and a light-band-heavy-band mixture in the valence bands. The thermopower at high temperature is high for high carrier concentrations up to 0.2 per unit cell for both p type and n type. The results suggest experimental investigation of these materials as potential thermoelectrics.

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