Structure and magnetic analyses of hexaferrite Sr1−xLaxFe22+Fe163+O27 prepared via the solid-state reaction

  • Jin Tang
  • Xiansong LiuEmail author
  • Dan Li
  • Yujie Yang
  • Xucai Kan
  • Khalid Mehmood Ur Rehman


W-type ferrite Sr1−xLaxFe22+Fe163+O27 (x = 0.00, 0.05, 0.08, 0.10, 0.13 and 0.15) powders and magnets were prepared via the solid-state reaction in nitrogen. Phase components of the powder samples were examined by X-ray diffraction (XRD). XRD results demonstrated the appearance of pure phase hexagonal crystal structure and calculate the lattice constants c and a, c/a ratio, cell volume (Vcell), X-ray density (dX-ray) and crystallite size (D) parameters according to XRD data. Scanning electron microscopy (SEM) was used to observe the morphology of the magnets. SEM analyses revealed the hexagonal morphology of the ferrites. The magnetic characteristics of magnetic powders were measured by a vibrating sample magnetometer (VSM), and the magnetic characteristics of magnets were also measured by a permanent magnetic measuring equipment. The results indicate that, the synthesized samples with a low coercive force value and a considerable saturation magnetization are best able to make optical read-out of the magnetic storage information in erasable video and audio discs.



This work was funded by the National Natural Science Foundation of China (Nos. 51472004, 51272003).


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Jin Tang
    • 1
  • Xiansong Liu
    • 1
    Email author
  • Dan Li
    • 2
  • Yujie Yang
    • 3
  • Xucai Kan
    • 1
  • Khalid Mehmood Ur Rehman
    • 1
  1. 1.Engineering Technology Research Center of Magnetic Materials, School of Physics & Materials ScienceAnhui UniversityHefeiPeople’s Republic of China
  2. 2.Public Experimental Teaching CenterPanzhihua UniversityPanzhihuaPeople’s Republic of China
  3. 3.Computational Physics Key Laboratory of Sichuan Province, School of Physics and Electronic EngineeringYibin UniversityYibinPeople’s Republic of China

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