The electrical modulus, conductivity and dielectric properties of Mn 3 TeO 6 multiferroic compound

In this communication, the complex oxide Mn 3 TeO 6 (MTO) compound was synthesized by solid-state reaction (SSR) method with high processing temperature. Mn 3 TeO 6 compound was characterized by using the XRD technique at room temperature. The material was found in single phasic nature, and compositional purity was confirmed by using EDAX analysis. FE-SEM analysis was carried out to study the morphological properties of the prepared Mn 3 TeO 6 (MTO) compound. Frequency-dependent electrical properties have been studied by using Complex Impedance Spectroscopy (CIS) characterization technique. Complex permittivity analysis (Dielectric constant ε′ and Dielectric loss ε’’) of the Mn 3 TeO 6 (MTO) compound has been studied. The dielectric constant of the compound is found to increase with temperature (303 K–393 K). Dielectric behavior has been successfully explained by theoretically fitting the cole cole model and comparing results with experimental values. Cole cole plot from permittivity analysis indicates non-Debye type dielectric relaxation mechanism present in the studied compound. This has been discussed in detail on the basis of complex modulus study for the Mn 3 TeO 6 compound. Electrical conductivity analysis has been carried out by theoretically fitting of observed data with power law. The conductivity parameter with s < 1 suggests CBH (Correlated Barrier Hopping) mechanism responsible for conduction. As increase in temperature, conductivity was found to be increased. Fitting parameters obtained from the theoretical aspect have been discussed in the present context.