Disordered, Electronic energy gap, Pb-Sr

• Cu-La-O-Pb-Sr
• Fe-O-Pb-Sr
• Ca-Cu-O-Pb-Sr-Y
• Cu-Nd-O-Pb-Sr
• Ca-Cu-Er-O-Pb-Sr
• values of electronic energy gap
• thermal energy gap
• energy gap for direct transition
• disordered
• alkaline
• chalcogen
• oxide
• tetragonal
• orthorhombic
• cubic
• trigonal
• monoclinic