Chalcogen, Oxide, Transitional, Kim, Raman spectra

• Ba-O-Ti
• Bi-Fe-O-Ti
• Ga-O-Zn
• Bi-Fe-O
• Ba-Bi-Na-O-Sr-Ti-Zr
• transitional
• oxide
• chalcogen
• disordered
• conductor
• tetragonal
• orthorhombic
• trigonal
• cubic
• hexagonal