Chalcogen, Oxide, Transitional, Kim, Phonons

• Ba-O-Ti
• Ba-Cu-O-Y
• Fe-Ni-O-Zn
• Bi-Fe-O
• La-Li-O-Si
• Raman spectra
• wavenumber of optical phonon
• infrared spectra
• wavenumber of transverse optical phonon
• vibrational spectra
• chalcogen
• transitional
• oxide
• disordered
• conductor
• tetragonal
• orthorhombic
• trigonal
• cubic
• hexagonal