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Publication Citation: High Dielectric Permittivity in AFe1/2B1/2O3 Nonferroelectric Perovskite Ceramics (A = Ba, Sr, Ca; B= Nb, Ta, Sb)

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Author(s): I P. Raevski; S A. Prosandeev; S A. Bogatin; M A. Malitskaya;
Title: High Dielectric Permittivity in AFe1/2B1/2O3 Nonferroelectric Perovskite Ceramics (A = Ba, Sr, Ca; B= Nb, Ta, Sb)
Published: Date Unknown
Abstract: Afel/2B1/203 (A- Ba, Sr, Ca; B-Nb, Ta, Sb) ceramics were synthesized and temperature dependencies of the dielectric permittivity were measured at different frequencies. The experimental data obtained show very high values of the dielectric permittivity in a wide temperature interval that is inherent to so-called high-k materials. The analyses of these data establish a Maxwell-Wagner mechanism as a main source for the phenomenon observed.
Citation: Physical Review B (Condensed Matter and Materials Physics)
Keywords: ceramics;dielectric permittivity;ferroelectricity;perovskites
Research Areas: Characterization, Ceramics