Ba-Ca-Cu-Hg-O, Chalcogen, Square pyramid 5-vertex, Tetragonal

• Ba-Ca-Cu-Hg-O-Tl
• Ba-Ca-Cu-Hg-O-Re
• Ba-Ca-Cu-Hg-O-Pb
• Ba-Ca-Cu-Hg-O-Tl-Y
• superconductivity
• structural properties
• electronic and electrical properties
• thermal and thermodynamic properties
• superconducting transition temperature
• disordered
• cuprate
• chalcogen
• alkaline
• high-tc superconductor