Chalcogen, Critical current density, Square pyramid 5-vertex

• Ba-Cu-O-Y
• Bi-Ca-Cu-O-Pb-Sr
• Ba-Ca-Cu-O-Tl
• Ba-Ca-Cu-O-Y
• Ba-Cu-O-Sm
• values of critical current density
• chalcogen
• transitional
• disordered
• alkaline
• high-tc superconductor
• orthorhombic
• tetragonal
• monoclinic