Ba-Cu-O-Y, Coplanar square 4-vertex

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