H6Ba2Ca[PO4]4-a mP46 14

• Ba-Ca-H-O-P
• Ba-H-Mn-O-P
• optical properties
• phonons
• structural properties
• wavenumber of longitudinal optical phonon
• Raman spectra
• orthophosphate
• non-disordered
• quinary
• pnictogen
• chalcogen
• monoclinic