Ba-Ca-Cu-O-Tl, Khan, Tetragonal, Transitional

• Ba-Ca-Cu-O-Tl-Zn
• Ba-Be-Ca-Cu-O-Tl
• Ba-Ca-Cu-Mg-O-Tl-Zn
• Ba-Ca-Cu-Mg-O-Tl
• superconductivity
• superconducting transition temperature
• values of superconducting transition temperature
• electronic and electrical properties
• optical properties
• transitional
• high-tc superconductor
• alkaline
• chalcogen
• oxide