1991, Alkaline, Chalcogen

• Ba-Cu-O-Y
• Cu-La-O-Sr
• Bi-Ca-Cu-O-Sr
• Ba-Ca-Cu-O-Tl
• Bi-Ca-Cu-O-Pb-Sr
• structural properties
• electronic and electrical properties
• superconductivity
• superconducting transition temperature
• magnetic properties
• alkaline
• chalcogen
• transitional
• oxide
• disordered
• orthorhombic
• tetragonal
• cubic
• monoclinic
• trigonal