Chalcogen, High-tc superconductor, Conductivity or resistivity, P4/mmm

• Cu-Gd-O-Ru-Sr
• Ba-Ca-Cu-O-Tl
• Ba-Ca-Cu-La-O
• Ba-Cu-Fe-O-Y
• Ba-Cu-O-Y
• electrical resistivity
• electrical conductivity
• high-tc superconductor
• transitional
• alkaline
• chalcogen
• conductor
• tetragonal
• orthorhombic