Chalcogen, Disordered, Quaternary, Transitional, Kim, Phonons

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