H-Y, H-x polyhedra, Non-disordered, Optical properties

• C-H-Y
• H-Mn-Y
• phonons
• vibrational spectra
• Raman spectra
• wavenumber of longitudinal optical phonon
• phonon density of states
• rare earth
• non-disordered
• transitional
• binary
• hydride
• trigonal
• cubic