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El-Nahass, M. M.; Hassanien, A. M.; Atta, A. A.; Ahmed, Emad M. A.; Ward, Azza A.
Journal of materials science. Materials in electronics, 2017/1, Letnik: 28, Številka: 2Journal Article
The complex dielectric permittivity and electrical conductivity for bulk cubic structure CeO 2 (annealed at 1273 K for 10 h) are studied using capacitance ( C ) and the impedance Z ( ω ) measurements in a wide range of frequency (0.1 Hz–5 MHz) and at various temperatures (298–448 K). The measured dielectric permittivity and electrical conductivity data of CeO 2 are analyzed using electric modulus formalism M ∗ ω , Nyquist plot, Jonscher’s universal power law, small polaron tunneling model and nearly constant loss model.
