Studying the electronic structure of silicon germanium can reveal the properties of semiconductor materials, provide theoretical guidance for the application of silicon germanium, and study the local density functional theory of silicon germanium. By studying the local density functional theory of silicon and germanium, a more accurate property model can be proposed.

Silicon and germanium are semiconductor materials and have important application value. First-principles calculation is the basic theory to study the properties of semiconductor materials. Therefore, the first-principles paper on silicon and germanium has important research value.