Chalcogen, Conductor, Disordered, Semiconductor, Transitional, Raman spectra

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