Ag7TaS6 cF220 216

• Ag-Se-Ta
• Ag-S-Ta
• Ag-S-Se-Ta
• Ag-Nb-S
• electronic and electrical properties
• thermal and thermodynamic properties
• conductivity or resistivity
• structural transitions
• phase transitions
• transitional
• chalcogen
• disordered
• nonmetal
• argyrodite
• cubic