Dielectric and magnetic properties of BaFe11.7Ni0.3O19 (BHNF) ceramic synthesized by chemical route

  • Atendra Kumar
  • Shiva Sundar Yadava
  • Pooja Gautam
  • Ankur Khare
  • Laxman Singh
  • K. D. MandalEmail author


Nickel-doped barium hexaferrite, BaFe11.7Ni0.3O19 (BHNF), ceramic was prepared by a chemical route. The single phase formation of BHNF ceramic in the sintered material at 1200 °C for 6 h was confirmed by powder XRD. Hexagonal and round shape particles were observed by transmission electron microscopy (TEM), and the particle size was found to be 81 ± 10 nm. The average roughness and root mean square roughness were observed by atomic force microscopy (AFM) evaluated to be 57 and 73 nm, respectively. The zero field cooled (ZFC), field cooled (FC), and magnetic hysteresis curves indicate temperature dependent ferromagnetic behavior of BHNF ceramic. The dielectric constant (ε’) was determined to be 1.7 × 104 at 423 K and 100 Hz. The high value of ε’ indicates the presence of semiconducting grains and insulating grain boundaries which was supported by internal barrier layer capacitance mechanisms.


Chemical route FT-IR Magnetic behavior Dielectric properties 



Authors would like to thank the Central Instrument Facility Center (CIFC) IIT (BHU) for providing SEM, TEM, and MPMS facilities.


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Copyright information

© Australian Ceramic Society 2019

Authors and Affiliations

  • Atendra Kumar
    • 1
  • Shiva Sundar Yadava
    • 1
  • Pooja Gautam
    • 1
  • Ankur Khare
    • 1
  • Laxman Singh
    • 2
  • K. D. Mandal
    • 1
    Email author
  1. 1.Department of Chemistry, Indian Institute of TechnologyBanaras Hindu UniversityVaranasiIndia
  2. 2.Department of ChemistryUniversity of UlsanUlsanRepublic of Korea

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