Cubic, Electronic and electrical properties, Nb-x polyhedra, Tripolyhedral

• Fe-Nb-O-Pb
• Mg-Nb-O-Pb-Ti
• Nb-O
• K-Na-Nb-O
• K-Nb-O-Ta
• permittivity (dielectric constant)
• electrical conductivity
• effective mass
• conductivity or resistivity
• electronic energy gap
• transitional
• tripolyhedral
• chalcogen
• disordered
• oxide