Electronic and electrical properties, Nb, Oxide, Transitional

• Mg-Nb-O-Pb-Ti
• K-Na-Nb-O
• Na-Nb-O
• Bi-Nb-O-Sr
• Nb-O
• permittivity (dielectric constant)
• electrical conductivity
• effective mass
• electronic energy gap
• values of electronic energy gap
• oxide
• chalcogen
• transitional
• disordered
• nonmetal
• tetragonal
• cubic
• orthorhombic
• monoclinic
• trigonal