Ba-Cu-O-Y, Chalcogen, Oxide, Kim, Orthorhombic

• Ba-Cu-O-Y-Zn
• Ba-Cu-F-O-Y
• Ba-Cr-Cu-O-Y
• Ba-Cu-F-O-Y-Yb
• optical properties
• thermal and thermodynamic properties
• superconductivity
• phonons
• superconducting transition temperature
• disordered
• conductor
• alkaline
• chalcogen
• high-tc superconductor