Ba2Ca2Cu3TlO9 tP21 123

• Ba-Ca-Cu-Na-O-Tl
• thermal and thermodynamic properties
• superconductivity
• superconducting transition temperature
• values of superconducting transition temperature
• electronic and electrical properties
• diamagnetic
• intermediate valence
• conductor
• chalcogen
• high-tc superconductor
• tetragonal