Chalcogen, Rare earth, Charge, Orthorhombic

• Ba-Cu-O-Y
• Cu-La-O
• Ba-Ca-Cu-O-Y
• Ca-La-Mn-O
• Bi-Ca-Cu-O-Sr-Y
• electronic and electrical properties
• valence or charge transfer
• charge carrier concentration
• rare earth
• chalcogen
• transitional
• lanthanoid
• disordered