BaCu3O6.5SrY, Chalcogen, Cuprate, Quinary

• Ba-Cu-O-Sr-Y
• superconductivity
• superconducting transition temperature
• values of superconducting transition temperature
• structural properties
• thermal and thermodynamic properties
• disordered
• chalcogen
• alkaline
• cuprate
• high-tc superconductor
• orthorhombic
• tetragonal