Electronic and thermoelectric properties of Mg2GexSn1−x (x = 0.25, 0.50, 0.75) solid solutions by first-principles calculations

Electronic and thermoelectric properties of Mg₂Ge_xSn_1−x (x = 0.25, 0.50, 0.75) solid solutions by first-principles calculations

Li Kai-yue, Lu Yong^†, Huang Yan, Shao Xiao-hong^‡

(color online) The calculated phonon dispersion curves of Mg₂Ge_xSn_1−x at (a) x=0.25, (b) x=0.5, and (c) x=0.75, respectively. The corresponding results of Mg₂Sn (red solid lines in panel (a)) and Mg₂Ge (blue solid lines in panel (c)) are also shown for comparison.