Kim, Optical properties, Quaternary, Transitional

• As-Ba-Co-Fe
• Ba-Cu-O-Y
• La-Li-O-Si
• Fe-Ni-O-Zn
• Al-Er-S-Zn
• phonons
• luminescence
• optical spectra
• optical absorption
• wavenumber of optical phonon
• transitional
• quaternary
• chalcogen
• oxide
• disordered
• tetragonal
• orthorhombic
• cubic
• monoclinic
• hexagonal