Ba-Cu-O-Y, Conductor, Disordered, Transitional, 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
• Raman spectra
• optical conductivity
• conductor
• disordered
• chalcogen
• alkaline
• high-tc superconductor
• orthorhombic
• tetragonal