Chalcogen, Oxide, Kim, Raman spectra

• Ba-O-Ti
• C-O
• Bi-Fe-O-Ti
• Ga-O-Zn
• Bi-Fe-O
• chalcogen
• oxide
• transitional
• disordered
• rare earth
• tetragonal
• orthorhombic
• trigonal
• cubic
• hexagonal