In this comprehensive study, Erbium-substituted X-type hexaferrites, encompassing a range of compositions (x = 0.00 to 0.20), were meticulously synthesized through a heat treatment method at 1350 °C for 6 hours. XRD analysis unveiled the intricate structural landscape, where the x = 0.00 sample exhibited X, W-type, and α-Fe2O3 phases, while Er-substituted counterparts manifested the presence of X and W phases. Room temperature Mössbauer spectroscopy provided a profound understanding of the magnetic dynamics, with spectra elegantly fitted into five sextets. A discernible variation in saturation magnetization (MS) was observed. Remarkably, the composition with x = 0.12 emerged as the pinnacle, boasting maximum MS (52.29 Am2/kg) and anisotropy field (Ha) at 1370 kA/m, alongside a maximum relative area (~69%) for spin-up sites (k+a+b). Dielectric investigations across a broad frequency spectrum (20 Hz–2 MHz) illuminated the normal ferromagnetic behavior of these materials. The soft ferrite behavior and low dielectric loss tangent of the substituted compositions highlight their promise for applications in filter technology.

DOI: Article Investigation on structural, hysteresis, Mössbauer propertie...

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