Kchikech

• K-Nb-O-Ta
• La-O-Pb-Ti
• K-O-Ta
• Ca-O-Sr-Ti
• Cu-La-O-Pb-Ti
• electronic and electrical properties
• permittivity (dielectric constant)
• imaginary part of permittivity
• activation energy
• values of activation energy
• transitional
• chalcogen
• tripolyhedral
• ferroelectric
• disordered
• cubic