Cell and atoms, Chalcogen, Oxide, Transitional, Electronic energy gap

• Ba-O-Ti
• K-Nb-O
• La-Mn-O-Sr
• Co-Na-O
• Na-Nb-O
• values of electronic energy gap
• energy gap for direct transition
• energy gap for indirect transition
• transitional
• chalcogen
• oxide
• disordered
• cubic
• orthorhombic
• tetragonal
• monoclinic
• trigonal