Kim, Optical properties, Quaternary

• Ba-Cu-O-Y
• As-Ba-Co-Fe
• Al-Mg-O-Ti
• Cr-Cu-Fe-S
• Al-Er-S-Zn
• phonons
• optical spectra
• wavenumber of optical phonon
• luminescence
• Raman spectra
• quaternary
• transitional
• chalcogen
• disordered
• oxide
• tetragonal
• cubic
• orthorhombic
• monoclinic
• hexagonal