A hybrid functional first-principles study on the band structure of non-strained Ge1−xSnx alloys
Wang Xiaohuai1, Chen Chengzhao1, Feng Shengqi1, Wei Xinyuan2, Li Yun1, †
       

(color online) Charge distribution of the conduction band valley at the Γ point in Fig. 1(b). (a) Isosurfaces, (b) contour on the (110) face. Coffee balls are Ge atoms, blue balls are Sn atoms.