Structural and magnetic properties of Ce-doped strontium hexaferrite

M. A. Almessiere, Y. Slimani, A. Baykal

Research output: Contribution to journalArticlepeer-review

162 Scopus citations


Ce3+ ion substituted Sr-hexaferrite magnetic nanoparticles (MNPs), SrCexFe12-xO19 (0.0 ≤ x ≤ 0.5) MNPs, were fabricated by citrate sol-gel combustion approach. All products have been characterized using X-ray diffraction (XRD), Photoluminescence, scanning electron microscopy (SEM), elemental mapping (EDS), transmission electron microscopy (TEM) and vibrating sample magnetometer (VSM) at 300 and 10 K. The XRD pattern presents effective substitution of Ce3+ on the sites of strontium hexaferrite lattice. With Ce3+ doping, the lattice parameters a is almost unchanged, whereas c is a little increases with increasing the dopant contents. The hysteresis loops M-H showed the ferromagnetic nature of all elaborated. The saturation magnetization (Ms) and the remnant magnetization (Mr) are reduced with increasing Ce amount. All the elaborated products presented typically squarness ratio (Mr/Ms) around 0.5, indicating the existence of non-interacting single domain MNPs with a uniaxial anisotropy. The anisotropy fields (Ha) are found to be very large proving that all products are magnetically hard. With increasing the Ce content, Ha increases which indicate the strengthening of magnetic properties. Consequently, the values of coercive field (Hc) are enhanced, leading these products to be utilized in many uses, such as recording media and permanent magnets. ZFC and FC magnetizations curves indicated shifts of the blocking temperature (TB) to lower temperatures with increasing Ce content. This is accredited to the reducing of particle size with Ce-substitution.
Original languageEnglish (US)
Pages (from-to)9000-9008
Number of pages9
Issue number8
StatePublished - Jun 14 2018
Externally publishedYes

Bibliographical note

KAUST Repository Item: Exported on 2022-06-07
Acknowledgements: Dr. Baykal thanks to Deanship of Scientific Research (DSR) and Institute for Research & Medical Consultations (IRMC) of Imam Abdulrahman Bin Faisal University for providing the financial assistance for this study. Application Number (Auto): 2017-605-IRMC . Dr. Munireh thanks to the Core Labs of King Abdullah University of Science and Technology (KAUST). Dr. Baykal thanks to Institute for Research & Medical Consultations (IRMC) of Imam Abdulrahman Bin Faysal University for the financial assistance for this study.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.


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