Alkaline, Conductor, Non-disordered, Energy gap for direct transition

• Mg-O
• O-Sr-Ti
• Mg-O-Zn
• Ba-Cu-F-O-Y
• Ca-O
• alkaline
• conductor
• non-disordered
• semiconductor
• chalcogen
• cubic
• orthorhombic
• tetragonal
• trigonal
• monoclinic