<p>Strontium hexaferrite nanoparticles were prepared via polyol-mediated synthesis route for magnetoelectric and resistive switching device applications. X-Ray Rietveld refinement revealed the single-phase formation with space group P6₃/mmc for the strontium hexaferrite. The hexaferrite nanoparticles possessed improved dielectric properties with high magnetoelectric coupling constant at room temperature. The cross-coupling of magnetic and ferroelectric domains assisted via domain wall resulted in induced ferroelectric polarisation near the magnetic domain wall due to the non-centro symmetry. The BET measurement was used to estimate the surface area of the SrFe₁₂O₁₉ nanoparticles. The polyol-mediated hexaferrite nanoparticles-based materials exhibited battery like characteristics due to the additional redox reaction. With increase in sweep voltage, the battery like characteristics became more prominent due to increase in internal field. These findings suggest strontium hexaferrite nanoparticles possess potential application for resistive switching and non-volatile memory storage devices.</p>