Ba-Cu-O-Y, Chalcogen, Conductor, Rare earth, Optical properties

• Ba-Co-Cu-O-Y
• Ba-Cu-Fe-O-Y
• Ba-Cu-O-Y-Zn
• Ba-Cu-O-Pr-Y
• phonons
• wavenumber of optical phonon
• optical spectra
• optical conductivity
• reflectivity
• oxide
• conductor
• alkaline
• chalcogen
• rare earth
• orthorhombic
• tetragonal