Chalcogen, Disordered, Oxide, Charge

• Ba-Cu-O-Y
• O-Zn
• Fe-O
• Cu-La-O-Sr
• Ba-Ca-Cu-O-Tl
• electronic and electrical properties
• valence or charge transfer
• charge carrier concentration
• disordered
• oxide
• chalcogen
• transitional
• alkaline
• orthorhombic
• tetragonal
• cubic
• trigonal
• monoclinic