Ba-Cu-O-Y, Chalcogen, Transitional, Electric properties

• Ba-Cu-O-Pr-Y
• Ba-Cu-Fe-O-Y
• Ba-Cu-O-Y-Zn
• Ba-Ca-Cu-O-Y
• conductivity or resistivity
• electrical resistivity
• electrical conductivity
• transitional
• chalcogen
• alkaline
• rare earth
• high-tc superconductor
• orthorhombic
• tetragonal
• cubic
• monoclinic
• trigonal