Chalcogen, Quaternary, Kim, Phonons

• Ba-Cu-O-Y
• Fe-Ni-O-Zn
• Ce-Li-O-Si
• Eu-Li-O-Si
• La-Li-O-Si
• Raman spectra
• wavenumber of optical phonon
• infrared spectra
• wavenumber of transverse optical phonon
• energy of optical phonon
• quaternary
• chalcogen
• transitional
• oxide
• disordered
• tetragonal
• orthorhombic
• hexagonal
• monoclinic
• cubic