Sr2Cu(Tl0.5Pb0.5)O5 tP12 123

• Ba-Cu-La-O-Tl
• Ba-Cu-La-O-Sr-Tl
• Ba-Ca-Cu-La-O-Tl
• Ca-Cu-La-O-Sr-Tl
• Co-O-Sr-Tl
• structural properties
• superconducting transition temperature
• superconductivity
• values of superconducting transition temperature
• optical properties
• cuprate
• alkaline
• high-tc superconductor
• chalcogen
• transitional
• tetragonal