Nonmetal, O-Ti, Optics, Orthorhombic

• K-O-P-Ti
• O-Ti-Y
• Ca-O-Ti
• Br-O-Ti
• Nd-O-Ti
• phonons
• luminescence
• Raman spectra
• wavenumber of optical phonon
• optical absorption
• chalcogen
• nonmetal
• transitional
• oxide
• disordered