Alkaline, Chalcogen, Cubic, Phonons

• O-Sr-Ti
• Fe-Mg-O
• Ba-O-Ti
• Mg-O
• Ba-O-Sn
• Raman spectra
• wavenumber of optical phonon
• infrared spectra
• vibrational spectra
• wavenumber of longitudinal optical phonon
• alkaline
• chalcogen
• oxide
• transitional
• disordered