Structural, morphological, luminescence, magnetic, and electrical transport properties of zinc-doped MnFe2O4 nanomaterials

What is it about?

The dielectric parameters dielectric constant \( \varepsilon ' \) and dielectric loss tangent (tan δ) decreased with increasing frequency showing a normal ferrite behavior. The temperature-dependent dielectric studies showed a decrease in \( \varepsilon ' \) with an increasing temperature and Zn substitution. The variation in AC conductivity (σac) is due to polarons.

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Why is it important?

The EIS of the sample revealed that the conductivity is mainly due to grain boundaries. The Cole–Cole impedance plots show semicircular behavior. Dielectric dispersion observed due to interfacial polarization of Maxwell–Wagner type. Dielectric loss tangent has been decreased with the increase of applied frequency.

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