Ba-Cu-O-Y, Non-disordered, Transitional, Optics

• Ba-Cu-O-Y-Zn
• Ba-Co-Cu-O-Y
• Ba-Cu-Ni-O-Y
• Ag-Ba-Cu-O-Y
• phonons
• wavenumber of optical phonon
• optical conductivity
• reflectivity
• optical spectra
• rare earth
• non-disordered
• chalcogen
• alkaline
• transitional
• orthorhombic
• tetragonal