Sr2Ca2Cu3Tl0.5Pb0.5O9 tP23 123

• Ca-Cu-O-Pb-Sr-Tl
• structural properties
• electronic and electrical properties
• superconductivity
• values of superconducting transition temperature
• superconducting transition temperature
• intermediate valence
• conductor
• chalcogen
• high-tc superconductor
• diamagnetic
• tetragonal