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Effect of MoO3 Addition on the Magnetic Properties and Complex Impedance of Mn–Zn Ferrites with High B s and High Initial Permeability

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Abstract

Mn–Zn ferrites with high initial permeability (μ i) and high saturation magnetic flux density (B s) were successfully synthesized by using a conventional ceramic processing route with addition of MoO3. The structure, morphology, magnetic properties, and complex impedance of all samples were investigated by X-ray diffraction, scanning electron microscopy, DC magnetic instrument, and precision LCR meter. The addition of MoO3 promotes the growth of larger and more uniform grains and therefore enhances the μ i. Meanwhile, it improves the density and hence the B s. Through the analysis of complex impedance spectra by an equivalent circuit model, it is demonstrated that MoO3 mainly exists at grain boundaries and improves the impedance in a wide frequency range.

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Acknowledgments

This work was supported by the National Nature Science Foundation of China through grant no. 11204270 and the Zhejiang Provincial Natural Science Foundation of China through grant no. LQ12A04003.

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Authors and Affiliations

  1. Research Center of Magnetic and Electronic Materials, College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, China

    Yao Ying, Yuzhao Gong, Dong Liu, Wangchang Li, Jing Yu, Liqiang Jiang & Shenglei Che

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  1. Yao Ying
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  2. Yuzhao Gong
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  3. Dong Liu
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  4. Wangchang Li
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  5. Jing Yu
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  7. Shenglei Che
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Correspondence to Shenglei Che.

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Ying, Y., Gong, Y., Liu, D. et al. Effect of MoO3 Addition on the Magnetic Properties and Complex Impedance of Mn–Zn Ferrites with High B s and High Initial Permeability. J Supercond Nov Magn 30, 2129–2134 (2017). https://doi.org/10.1007/s10948-017-4002-z

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  • DOI: https://doi.org/10.1007/s10948-017-4002-z

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