Conductor, Oxide, Kim, Optical properties, Tetragonal

• Ba-O-Ti
• Ir-O-Sr
• Ir-O
• O-Ru-Sr
• O-V
• phonons
• optical spectra
• optical conductivity
• wavenumber of optical phonon
• luminescence
• oxide
• transitional
• chalcogen
• conductor
• non-disordered