Chalcogen, Conductor, Disordered, Semiconductor, Raman spectra

• Bi-Fe-O
• Ba-O-Ti
• O-Zn
• Ba-Cu-O-Y
• Ce-O
• semiconductor
• chalcogen
• disordered
• conductor
• transitional
• cubic
• tetragonal
• orthorhombic
• trigonal
• monoclinic