BaCu3O6.5SrY, Chalcogen, Quinary

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