Conducted an extensive study on hexaferrites, substituting Erbium into X-type Ba2Co2ErxFe28-xO46 through a precise heat treatment process. XRD analysis highlighted phase variations, showcasing distinct X, W-type, and α-Fe2O3 phases in x = 0.0 samples, while Er-substituted samples exhibited the presence of X and W phases. The room temperature Mössbauer spectra, meticulously fitted with five sextets, elucidated a variation in saturation magnetization (MS). The pinnacle magnetic properties, with MS at 52.29 Am2/kg and anisotropy field-Ha at 1370 kA/m, were observed for x = 0.12 composition. Further, a comprehensive exploration of dielectric responses, from low frequency (20 Hz–2 MHz) behaviors attributed to grain boundaries to higher frequencies associated with grain contributions, was conducted. The findings suggest potential applications in filters owing to the soft ferrite behavior and low dielectric loss tangent exhibited by the substituted compositions. This research contributes valuable insights to the field of materials science and magnetism.
The study focuses on the preparation and characterization of Erbium-substituted hexaferrites (Ba2Co2ErxFe28-xO46) using a heat treatment method. Key aspects include XRD investigation revealing phase variations, Mössbauer spectroscopy explaining saturation magnetization (MS) variation, and identification of optimal magnetic properties at x = 0.12 (MS: 52.29 Am2/kg, anisotropy field-Ha: 1370 kA/m). The research delves into dielectric responses, attributing low-frequency behavior to grain boundary contributions and high-frequency behavior to grain contributions. The findings suggest potential applications in filters due to soft ferrite behavior and a low dielectric loss tangent exhibited by the substituted compositions.
DOI: Article Investigation on structural, hysteresis, Mössbauer propertie...
#MaterialsScience #Research #Hexaferrites #MagneticProperties #DielectricAnalysis #Innovation
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