Structural, Optical, Dielectric, and Magnetic Characteristics of Nd Ions Substituted BaFe11(Sn0.5Mg0.5)xO19 M-Type Hexaferrite via Co-precipitation

  • Ghulam Abbas Ashraf
  • Lanting ZhangEmail author
  • Waseem Abbas
  • Muhammad Ajmal
  • Ghulam MurtazaEmail author
  • Mukhtar Ahmad
Original Paper


Nanoparticles (NPs) of barium hexaferrite were synthesized by a chemical co-precipitation technique in an aqueous solution with a nominal composition of BaFe11(Sn0.5Mg0.5)1−xNdxO19 (x = 0, 0.5, 1). XRD and FTIR analyses were performed to study the crystal structure of the magnetic powders (MPs) in order to obtain details on the hexaferrite structure. Grain morphology and elemental composition were assessed by SEM and EDS, respectively, and nano-sized hexagonal platelet-like structures in all MPs were demonstrated. All of the structural parameters such as “a”, “c”, V(cell) and Dx have been altered with successful incorporation of Nd into hexagonal lattices, thereby the band gap Eg first increased x ≤ 0.5 then decreased up to x = 1 (i.e., drawn via a Tauc plot) from 1.53–1.82 eV. The measurements of dielectric properties depict relaxation behavior at higher frequencies. The dielectric measurements increase with increased hexaferrite. Furthermore, the magnetic properties of all MPs were examined by VSM at room temperature (RT). The saturation magnetization (Ms), remnant magnetization (Mr), and coercivity (Hc) were linearly decreased by the SnMg content, whereas an increasing trend appeared with the additional Nd content. However, the squareness ratio increased with an increase in the content (x). These outcomes make this substitution an excellent candidate for multiple applications such as optical, electrical-based devices, circulators, and recording materials.


Barium M-type hexaferrites (BaM) Co-precipitation Optical band Dielectric constant Magnetization 


Funding Information

This work was done by the support of the National Key Research and Development Program of China (grant no. 2017YFB0701900), and the Science and Technology Commission of Shanghai Municipality (grant nos. 15DZ2260303 and 16DZ2260602).


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Ghulam Abbas Ashraf
    • 1
  • Lanting Zhang
    • 1
    Email author
  • Waseem Abbas
    • 1
  • Muhammad Ajmal
    • 2
  • Ghulam Murtaza
    • 3
    Email author
  • Mukhtar Ahmad
    • 4
  1. 1.School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghaiChina
  2. 2.Department of PhysicsBahauddin Zakariya UniversityMultanPakistan
  3. 3.Centre for Advanced Studies in PhysicsGC UniversityLahorePakistan
  4. 4.Department of PhysicsCOMSATS University Islamabad, Lahore CampusLahorePakistan

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