Anharmonic phonon renormalization and thermal transport in the type-I Ba${}_8$Ga${}_{16}$Sn${}_{30}$ clathrate from first principles

Masato Ohnishi, Terumasa Tadano, Shinji Tsuneyuki +1

Effects of strong phonon anharmonicity of a type-I clathrate Ba${}_8$Ga${}_{16}$Sn${}_{30}$ induced by quadruple-well potential of guest atoms were investigated. Phonon tra…