Ca-Cu, Chalcogen, Electrical resistivity

• Bi-Ca-Cu-O-Sr
• Bi-Ca-Cu-O-Pb-Sr
• Ba-Ca-Cu-O-Tl
• Ba-Ca-Cu-Hg-O
• Bi-Ca-Cu-O-Sr-Y
• chalcogen
• alkaline
• transitional
• conductor
• high-tc superconductor
• tetragonal
• orthorhombic
• monoclinic
• cubic
• trigonal