Buljan

• Cu-S-Sn-Sr
• O-S-Sm
• Eu-O-S
• Cu-Ge-S-Sr
• Cu-Fe-Li-S
• electronic and electrical properties
• optical properties
• reflectivity
• energy band structure
• values of electron density of states
• chalcogen
• sulfide
• transitional
• non-disordered
• quaternary
• trigonal
• tetragonal
• cubic