Infrared study on the electronic structure of alkaline-earth-filled skutterudites AT4Sb12 (A = Sr, Ba; M = Fe, Ru, Os)

Shin-ichi Kimura, Hojun Im, Takafumi Mizuno +3

The optical conductivity [$\sigma (\omega )$] spectra of alkaline-earth-filled skutterudites with the chemical formula $A^{2+}{M}_4$Sb${}_{12}$ ($A$ = Sr, Ba, $M$ = Fe, Ru, Os) and a reference m…