Alkali, Cell and atoms, Non-disordered, Transitional, Electronic energy gap

• Na-Nb-O
• K-Nb-O
• Mn-Na-O
• Na-O-V
• Fe-Na-O
• values of electronic energy gap
• energy gap for direct transition
• energy gap for indirect transition
• transitional
• alkali
• non-disordered
• chalcogen
• monoclinic
• orthorhombic
• trigonal
• tetragonal
• triclinic