P4/mmm, Superconductivity

• Ba-Cu-Fe-O-Y
• Ba-Ca-Cu-La-O
• Ba-Ca-Cu-Hg-O
• Ba-Ca-Cu-O-Tl
• Cu-Gd-O-Ru-Sr
• superconducting transition temperature
• values of superconducting transition temperature
• lowest temperature of investigation
• critical magnetic field
• transitional
• chalcogen
• alkaline
• high-tc superconductor
• conductor
• tetragonal
• orthorhombic
• trigonal