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Electrospun Dy-doped SrFe12O19 nanofibers: microstructure and magnetic properties

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Abstract

SrDy x Fe12−x O19 (x ≤ 0.08) nanofibers have been synthesized by the electrospinning method followed by calcinations process. The partial substitution of rare earth ions Dy3+ (10.5 μ B of magnetic moments) mainly occupying 12k sublattice sites in the SrFe12O19 crystal structure is investigated and discussed in this work. An enhanced coercivity of 7155 Oe has been obtained when the doped content reached to 0.08 at a relative low calcination temperature of 800 °C. As a result, we believe the synthesized SrDy x Fe12−x O19 nanofibers can potentially be useful in high-density recording media as well as permanent magnets.

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Acknowledgments

This work is supported by the National Science Fund of China (11574121, 51371092).

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Authors and Affiliations

  1. Key Laboratory for Magnetic and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000, People’s Republic of China

    L. N. Pan, F. M. Gu, D. R. Cao, P. P. Jing, J. N. Li, J. B. Wang & Q. F. Liu

  2. Key Laboratory of Special Function Materials and Structure Design of the Ministry of Education, Lanzhou University, Lanzhou, 730000, People’s Republic of China

    J. B. Wang

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  1. L. N. Pan
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  2. F. M. Gu
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Correspondence to Q. F. Liu.

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Pan, L.N., Gu, F.M., Cao, D.R. et al. Electrospun Dy-doped SrFe12O19 nanofibers: microstructure and magnetic properties. Appl. Phys. A 122, 583 (2016). https://doi.org/10.1007/s00339-016-0119-3

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  • DOI: https://doi.org/10.1007/s00339-016-0119-3

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