Author:
Palaimiene Edita,Gribauskaite Vaiva,Banys Jūras,Pushkarev Anatoli V.,Radyush Yuri V.,Olekhnovich Nikolai M.,Cardoso João Pedro Veleirinho,Salak Andrei N.
Abstract
Dielectric properties of the BiFe0.5Cr0.5O3 ceramics synthesized under high pressure were investigated in a broad frequency range (20 Hz – 1 GHz) between 200 and 500 K. It was revealed that the ceramics exhibit electrical conductivity above 300 K. Below 300 K, a dielectric dispersion caused by ferroelectric domains was observed. It was found that the conductivity follows the Almond–West law, which allowed us to determine a DC contribution (σDC). From the σDC values obtained at different temperatures, the activation energy (EA = 0.302 ± 0.006 eV) was calculated using the Arrhenius law.
Publisher
Lithuanian Academy of Sciences
Subject
General Physics and Astronomy