Abstract
Temperature and frequency-dependent dielectric properties of 15% monovalent Li doped multiferroic GdMnO3 sample have been studied. A thermally activated relaxation with activation energy ~ 0.17 eV has been determined. An excellent fit of frequency dependent dielectric permittivity data with Curie-Von Schweidler’s function having n < 1 indicates that only Non-Debye relaxation is present in our sample. The frequency response of ac conductivity has been analyzed by using the Jonscher’s universal power law and signifies that motions of charge carriers are translational type. The temperature dependence of conductivity $$\sigma_{{{\text{dc}}}}$$ and $$\sigma_{{{\text{ac}}}} (\omega )$$ both follows Arrhenius law. An increase in conductivity with an increase in temperature suggests that electrical conductivity in the material is a thermally activated process.
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