Ba-Cu-O-Y, Superconducting transition temperature, Y-x polyhedra

• Ba-Cu-O-Pr-Y
• Ba-Cu-O-Y-Zn
• Ba-Ca-Cu-O-Y
• Ba-Cu-Fe-O-Y
• values of superconducting transition temperature
• pressure derivative of superconducting transition temperature
• lowest temperature of investigation
• rare earth
• alkaline
• chalcogen
• disordered
• transitional
• orthorhombic
• tetragonal
• trigonal