Alkaline, Chalcogen, Rare earth, Ba-Cu-O-Y, Kim

• 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
• rare earth
• transitional
• alkaline
• chalcogen
• conductor
• orthorhombic
• tetragonal