Ba-Cu-O-Y, Chalcogen, Rare earth, Charge carrier concentration

• Ba-Ca-Cu-O-Y
• Ba-Cu-Fe-O-Y
• Al-Ba-Ca-Cu-O-Y
• Al-Ba-Cu-O-Y
• electron to hole concentration ratio
• values of charge carrier concentration
• oxide
• high-tc superconductor
• chalcogen
• alkaline
• rare earth
• orthorhombic
• tetragonal