The effect of an AC electric field on the dielectric properties of Pb(Mg1/3Nb2/3)O3 ceramic

The dynamic dielectric response of Pb(Mg1/3Nb2/3 )O3 ceramic was experimentally studied as a function of the EAC amplitude field. An increase in real dielectric permittivity was obtained by increasing the applied electrical field within the investigated temperature range for frequencies below 10 kHz...

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Bibliographic Details
Published in:Materials and devices : an international scientific journal 2021-01, Vol.5 (2)
Main Authors: Lima, E.C., Guerra, J.D.S., Araujo, E.B.
Format: Article
Language:English
Online Access:Get full text
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Summary:The dynamic dielectric response of Pb(Mg1/3Nb2/3 )O3 ceramic was experimentally studied as a function of the EAC amplitude field. An increase in real dielectric permittivity was obtained by increasing the applied electrical field within the investigated temperature range for frequencies below 10 kHz. The temperature of maximum dielectric permittivity and freezing temperature decreased with an increase in E AC. Nonlinear permittivity was studied and found to behave similarly to freezing temperature. A statistical model was used to fit the dielectric dispersion of real dielectric permittivity with temperature and frequency. The results are discussed in terms of different factors’ contributions to dielectric permittivity under different EAC field conditions.
ISSN:2495-3911
2495-3911
DOI:10.23647/ca.md20201706