Electronic and electrical properties, Hexagonal, S-Sn, Sn-x polyhedra

• S-Sn-Ta
• Nb-S-Sn
• Cu-S-Sn-Y
• Ca-La-S-Sn
• La-S-Sn
• electrical conductivity
• effective mass
• electronic energy gap
• values of electronic energy gap
• energy band structure
• chalcogen
• sulfide
• transitional
• disordered