Ba-O-Ti, Chalcogen, Conductor, Semiconductor, Phonons

• Ba-O-Sr-Ti
• Ba-Nd-O-Ti
• Ba-O-Ti-Zr
• Ba-O-Pb-Ti
• Raman spectra
• wavenumber of optical phonon
• infrared spectra
• wavenumber of transverse optical phonon
• energy of optical phonon
• conductor
• oxide
• alkaline
• chalcogen
• semiconductor
• tetragonal
• cubic
• orthorhombic
• trigonal
• hexagonal