Apatite, Chalcogen, Disordered, Hexagonal, Phonons

• Ca-H-O-P
• La-O-Si
• Bi-Ca-O-P
• Ca-F-O-P
• C-Ca-F-O-P
• Raman spectra
• infrared spectra
• wavenumber of optical phonon
• vibrational spectra
• wavenumber of longitudinal optical phonon
• disordered
• chalcogen
• apatite
• pnictogen
• orthophosphate