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Structural, physical, and magnetic analyses of Co-substituted BaFe2 W-type hexaferrites prepared via the solid-state reaction

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Abstract

BaCoxFe2−x W-type hexagonal ferrites with nominal composition \( {\text{BaCo}}_{x} {\text{Fe}}_{2 - x}^{2 + } {\text{Fe}}_{16}^{3 + } {\text{O}}_{27} \) (x = 0.0, 0.5, 1.0, 1.5) were prepared by conventional solid-state reaction in nitrogen at high annealing temperature of 1350 °C. X-ray diffraction and scanning electron microscopy were used to find out the structural and physical properties of BaCoxFe2−x W-type hexaferrites. Vibrating-sample magnetometry was used to measure hysteresis (M vs. H) loops. Furthermore, magneto-crystalline anisotropy constant (K), Bohr magneton (nB), initial permeability (μi), and magnetic anisotropy fields (Ha) of Co in BaCoxFe2−x W-type hexaferrites were also calculated. Finally, the magnetic characteristics of magnets were also analyzed by B–H measuring equipment.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (No. 51872004) and Doctoral Fund Project of Guangxi University of Science and Technology (200018-03190311).

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Authors and Affiliations

  1. Research Center of Materials Science and Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, People’s Republic of China

    Jin Tang, Hao He, Yimin Li, Jishu Zeng & Chen Liu

  2. Center of Experimental Teaching for Common Courses, Panzhihua University, Panzhihua, 617000, People’s Republic of China

    Dan Li

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  1. Jin Tang
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Correspondence to Hao He or Yimin Li.

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Tang, J., Li, D., He, H. et al. Structural, physical, and magnetic analyses of Co-substituted BaFe2 W-type hexaferrites prepared via the solid-state reaction. Appl. Phys. A 126, 277 (2020). https://doi.org/10.1007/s00339-020-3425-8

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