Chalcogen, Non-disordered, Oxide, Electronic energy gap, Hexagonal

• O-Zn
• Ga-Se
• Mg-O-Zn
• Ba-Fe-O
• Be-O
• values of electronic energy gap
• energy gap for direct transition
• energy gap for indirect transition
• exciton energy
• pressure derivative of energy gap for direct transition
• oxide
• non-disordered
• chalcogen
• transitional