Alkaline, Chalcogen, Disordered, Values of electronic energy gap

• O-Sr-Ti
• Ba-O-Ti
• La-Mn-O-Sr
• Al-Ca-H-O-Si
• Al-H-Mg-O-Si
• chalcogen
• alkaline
• disordered
• transitional
• tetragonal
• cubic
• orthorhombic
• monoclinic
• trigonal