The Enhancement of Thermomagnetic Properties for BaFe12O19 by Trivalent Ion Substitutions

  • Adly H. El-Sayed
  • O. M. Hemeda
  • Mahmoud A. HamadEmail author
  • Ashraf M. Mohamed
Original Paper


The effect of trivalent ions (Al3+, Bi3+, and Mn3+) substitutions on magnetocaloric effect (MCE) of M-type ferrite BaFe12O19 (BaM) has been investigated by a phenomenological model. It is shown that the presence of Al3+, Bi3+, and Mn3+ ions in BaM makes remarkable variations for MCE. It is concluded that MnBaFe11O19 is more practical than BaM, BiBaFe11O19, and AlBaFe11O19 due to a larger MCE, and its Curie temperature is closer to room temperature. MCE of BaM can be tuning with remarkable values by doping suitable ions.


M-type ferrite BaFe12O19 Magnetocaloric effect Magnetic entropy change Heat capacity change 



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

Authors and Affiliations

  1. 1.Physics Department, Faculty of ScienceAlexandria UniversityAlexandriaEgypt
  2. 2.Physics Department, Faculty of ScienceTanta UniversityTantaEgypt
  3. 3.Physics and Chemistry Department, Faculty of EducationMatrouh UniversityMatrouhEgypt
  4. 4.Basic Science Department, Higher Institute of Engineering & TechnologyKing Marriott AcademyAlexandriaEgypt
  5. 5.Applied Organic Chemistry DepartmentNational Research CentreCairoEgypt

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