Ba-Nb, Electronic energy gap, Oxide

• Ba-Nb-O
• Ba-Nb-O-Ti
• Ba-Eu-Nb-O
• Ba-Na-Nb-O
• Ba-La-Nb-O
• values of electronic energy gap
• energy gap for direct transition
• transitional
• oxide
• alkaline
• chalcogen
• tetragonal
• cubic
• trigonal
• hexagonal
• orthorhombic