Ba-Cu-O-Y, Chalcogen, Non-disordered, Square pyramid 5-vertex

• Ba-Cu-O-Y-Zn
• Ba-Ca-Cu-O-Y
• Ba-Cu-Ni-O-Y
• Ba-Cu-La-O-Y
• superconductivity
• electronic and electrical properties
• superconducting transition temperature
• thermal and thermodynamic properties
• values of superconducting transition temperature
• rare earth
• alkaline
• chalcogen
• non-disordered
• transitional
• orthorhombic
• tetragonal