Alkaline, Chalcogen, Disordered, Hexagonal, Phonons

• Ba-Fe-O
• Ca-H-O-P
• Fe-O-Sr
• Bi-Ca-O-P
• Ca-F-O-P
• wavenumber of optical phonon
• infrared spectra
• Raman spectra
• vibrational spectra
• wavenumber of longitudinal optical phonon
• alkaline
• disordered
• chalcogen
• oxide
• transitional