Electronic and electrical properties, Na-Nb-O, Trigonal

• Li-Na-Nb-O
• Bi-Na-Nb-O-Ti
• Na-Nb-O-Pb-Ti-Zn
• Fe-Na-Nb-O-P
• electrical conductivity
• permittivity (dielectric constant)
• effective mass
• electronic energy gap
• values of electronic energy gap
• chalcogen
• transitional
• alkali
• oxide
• disordered