Abstract
The temperature and frequency dependence of dielectric permittivity and dielectric loss of nanosizedMn1−xZnxFe2O4 (for x = 0, 0.2, 0.4, 0.6, 0.8, 1) were investigated. The impact of zinc substitution on the dielectric propertiesof the mixed ferrite is elucidated. Strong dielectric dispersion and broad relaxation were exhibitedby Mn1−xZnxFe2O4. The variation of dielectric relaxation time with temperature suggests the involvement ofmultiple relaxation processes. Cole–Cole plots were employed as an effective tool forstudying the observed phenomenon. The activation energies were calculated fromrelaxation peaks and Cole–Cole plots and found to be consistent with each other andindicative of a polaron conduction.
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