Chalcogen, Nonmetal, S-Ta, Temperature for structural transition

• S-Se-Ta
• Ag-S-Ta
• Nb-S-Ta
• Ag-S-Se-Ta
• transitional
• chalcogen
• sulfide
• nonmetal
• charge-density wave state
• trigonal
• triclinic
• cubic
• orthorhombic
• monoclinic