Alkali, Nonmetal, Transitional, Phonons, Tetragonal

• Ag-C-Cl-Cs-N
• Bi-Na-O-W
• Ce-Li-Mo-O
• Bi-Na-O-Ti
• Co-Fe-K-Se
• wavenumber of optical phonon
• Raman spectra
• infrared spectra
• vibrational spectra
• wavenumber of longitudinal optical phonon
• transitional
• alkali
• nonmetal
• chalcogen
• disordered