Alkaline, Chalcogen, Non-disordered, Phonons, Trigonal

• Ca-Mn-O
• Ba-O-V
• As-Ca-O
• O-Sr-V
• Ba-O-Ti
• Raman spectra
• infrared spectra
• wavenumber of optical phonon
• vibrational spectra
• chalcogen
• non-disordered
• alkaline
• transitional
• ternary