Ba-Cu-Hg-O, Electrical conductivity, Hg-x polyhedra

• Ba-Ca-Cu-Hg-O-Re
• Ba-Cu-Hg-O-Tl
• Ba-Ca-Cu-Hg-O-Pb
• Ba-Ca-Cu-Hg-O-Pb-Y
• Ba-Ca-Cu-Hg-O
• chalcogen
• cuprate
• alkaline
• high-tc superconductor
• tetragonal