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Dielectric investigations of BiFeO3 ceramics

By Simonas Greičius, Juras Banys and Izabela Szafraniak-Wiza


In this paper we present the results from the investigation of the dielectric permittivity of BiFeO3 ceramics, prepared by mechanochemical synthesis method in a broad frequency and temperature range. The dielectric permittivity is mainly caused by high conductivity, which is suppressed in the frequencies above 1 MHz. The investigated ceramics showed conductivity activation energy E/k=11280±12 K, and σ0=54161±800 S. The plots of M* revealed conductivity mechanism with τ0=1.12·10^-13 s, and E/k=9245 K

Topics: Dielectric spectroscopy, Multiferroics, Activation energy, Chemical technology, TP1-1185, Technology, T, DOAJ:Chemical Technology, DOAJ:Technology and Engineering, Clay industries. Ceramics. Glass, TP785-869
Publisher: University of Novi Sad
Year: 2009
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