Chalcogen, Conductor, Oxide, Cu-Fe-O, Electrical resistivity

• Ba-Cu-Fe-O-Y
• Bi-Ca-Cu-Fe-O-Sr
• Cu-Fe-O-Sr-Y
• Cu-Fe-La-O-Sr
• transitional
• oxide
• chalcogen
• conductor
• semiconductor
• tetragonal
• cubic
• orthorhombic
• trigonal
• hexagonal