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- W4306768329 abstract "Manganese-zinc (MnZn) ferrites play an indispensable role in energy transform and harvesting. It is notable to mention that the combined enhancement of initial permeability (μ i ), saturation magnetic induction (B s ) and Curie temperature (T c ) is conducive to improving the output power and safety of magnetic field energy harvesting devices. In this paper, high permeability MnZn ferrites were synthesized by a conventional oxide ceramic method. The thermomagnetic curves of MnZn ferrites were fitted according to the Néel molecular field theory (NMFT) and the Brillouin function. Then the molecular field coefficient γ aa , γ ab , γ bb , and T c were calculated. Aiming at the magnetization mechanism of permeability, the contributions of domain wall motion and spin rotation were analyzed by fitting the complex permeability spectrum. Furthermore, the temperature characteristics of μ i and B s are analyzed, and we simulated and compared the effect of different magnetic properties of MnZn ferrites on the output of non-invasive magnetic field harvester. The MnZn ferrites with superior comprehensive performance own potential applications for non-invasive magnetic field harvester. • The superior overall performance of MnZn ferrite ( μ i > 9000, B s ≈ 500mT, T c = 447 K) results in 10% enhancement in energy harvesting efficiency (0.52μW/cm 3 in 11.5μT) compared to similar materials from TDK corporation. • The trends and principles of the molecular field coefficients were clarified by Brillouin function temperature characteristics. • Clarification of the magnetization mechanism of high permeability MnZn ferrites by permeability spectral separation and fitting." @default.
- W4306768329 created "2022-10-19" @default.
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- W4306768329 date "2023-02-01" @default.
- W4306768329 modified "2023-10-16" @default.
- W4306768329 title "Ferrite materials with high saturation magnetic induction intensity and high permeability for magnetic field energy harvesting: Magnetization mechanism and Brillouin function temperature characteristics" @default.
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- W4306768329 doi "https://doi.org/10.1016/j.jallcom.2022.167654" @default.
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