Chalcogen, High-tc superconductor, Hg-Tl, Tetragonal

• Ba-Ca-Cu-Hg-O-Tl
• Ba-Cu-Hg-O-Tl
• Ca-Cu-Hg-O-Sr-Tl
• Ba-Ca-Cu-Hg-O-Sr-Tl
• Ba-Ca-Cu-Hg-O-Tl-Yb
• thermal and thermodynamic properties
• electronic and electrical properties
• structural properties
• superconductivity
• conductivity or resistivity
• transitional
• high-tc superconductor
• alkaline
• chalcogen
• multinary