Alkaline, Chalcogen, Bb2b

• Bi-Ca-Cu-O-Pb-Sr
• Bi-Cu-O-Sr-Y
• Bi-Ca-Cu-O-Pb-Sn-Sr
• Bi-Ca-Cu-Dy-O-Sr
• Co-Ga-O-Sr
• magnetic properties
• electronic and electrical properties
• conductivity or resistivity
• superconductivity
• magnetic susceptibility
• transitional
• alkaline
• chalcogen
• high-tc superconductor
• conductor
• orthorhombic
• tetragonal