Chalcogen, Charge-density wave state, Metal, Electron energy band structure

• Nb-Se
• Ba-Cu-O-Y
• Se-Ti
• Se-Ta
• S-Ta
• chalcogen
• charge-density wave state
• metal
• transitional
• non-disordered
• trigonal
• orthorhombic
• hexagonal
• tetragonal
• monoclinic