Ba-Cu-O-Y, Disordered, Orthorhombic, Phonons

• Ba-Cu-La-O-Y
• Ba-Co-Cu-O-Y
• Ba-Cu-Ni-O-Y
• Ba-Cu-O-Y-Zn
• wavenumber of optical phonon
• Raman spectra
• wavenumber of longitudinal optical phonon
• vibrational spectra
• rare earth
• disordered
• chalcogen
• alkaline
• transitional