Electronic and electrical properties, K-Ta, Orthorhombic

• K-Li-Na-Nb-O-Sb-Ta
• Bi-K-O-Sr-Ta
• K-Na-Nb-O-Ta
• Co-K-Li-Na-Nb-O-Sb-Ta
• Bi-K-La-O-Ta
• effective mass
• electrical conductivity
• electronic energy gap
• values of electronic energy gap
• permittivity (dielectric constant)
• alkali
• transitional
• chalcogen
• oxide
• nonmetal