Alkaline, Quaternary, Transitional, Kim, Optical properties

• As-Ba-Co-Fe
• Ba-Cu-O-Y
• Ba-Nb-O-P
• Ca-La-Mn-O
• Al-Mg-O-Ti
• optical spectra
• luminescence
• phonons
• wavelength for luminescence
• photoluminescence spectra
• quaternary
• alkaline
• transitional
• chalcogen
• oxide
• tetragonal
• cubic
• orthorhombic
• monoclinic
• trigonal