Chalcogen, Conductor, Disordered, Optical properties

• O-Zn
• Ba-Cu-O-Y
• Fe-O
• Bi-Fe-O
• O-Ti
• phonons
• optical spectra
• optical absorption
• Raman spectra
• luminescence
• disordered
• chalcogen
• conductor
• semiconductor
• transitional
• cubic
• tetragonal
• orthorhombic
• trigonal
• hexagonal