Abstract
In-situ phases can influence the magnetocapacitance response of a magnetodielectric composite. In this work, BaTiO3-ferrite composite was prepared via an ex-situ combustion, and the effect of in-situ phases on the magnetocapacitance response has been explored. Plate-like barium hexaferrite and hexagonal barium titanate were appeared in the composite along with polyhedral barium titanate and cobalt ferrite. The highest permittivity was found ~ 1890 at low frequency due to the development of Maxwell–Wagner polarization at the interface of plate and polyhedral morphologies. The highest magnetocapacitance response was found ~ − 9.81% at 0.43 kOe in composite which was analogues to dM/dH maxima at ~ 0.5 kOe. The lowest magnetoresistance of barium hexaferrite confirmed the magneto-dielectric coupling among the phases in the composite. The marginal electrical inhomogeneity and magnetoresistance influenced the magnetocapacitance behavior in the composite.
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All data generated or analysed during this study are included in this published article [and its supplementary information files]. The datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.
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Pachari, S., Pratihar, S.K. & Nayak, B.B. Influence of in-situ phases on the magnetocapacitance response of ex-situ combustion derived BaTiO3–ferrite composite. Journal of Materials Research 39, 377–387 (2024). https://doi.org/10.1557/s43578-023-01231-2
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DOI: https://doi.org/10.1557/s43578-023-01231-2