Journal article
AC susceptibility and hyperfine interactions of Mg-Ca ions co-substituted BaFe12O19 nanohexaferrites

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Publication Details
Author list: M. A. Almessiere, Y. Slimani, H. Güngüneş, S. Ali, A. Baykal and I. Ercan
Publisher: Elsevier
Publication year: 2019
Journal: Ceramics International
Journal name in source: Ceramics International
Volume number: 45
Issue number: 8
Start page: 10048
End page: 10055
Number of pages: 8
ISSN: 0272-8842
Web of Science ID: 000465058500045
PubMed ID:
Scopus ID: 85061555949
eISSN: 1873-3956

Magnesium and calcium co-substituted Ba M-type nanohexaferrite (NHFs) is fabricated via sol-gel auto-combustion technique. The phase formation was proved by XRD powder pattern, FESEM and HR-TEM. Magnetic properties of Ba1-2xCaxMgxFe12O19 (x ≤ 0.1) NHFs investigated by Mossbauer Spectroscopy. The variations in line width, quadrupole splitting, isomer shift, the cation distribution of Ca2+ and Mg2+ ions and hyperfine magnetic field values were estimated. The AC magnetic susceptibility and ZFC-FC measurements were also performed for the Ba1-2xCaxMgxFe12O19 (x = 0.02 and 0.08) NHFs. The MFC-MZFC results do not show blocking temperature peak, indicating the ferrimagnetic (FM) behavior of prepared products. Different models including Neel-Arhenius (N-A), Vogel-Fulcher (V-F) and critical slowing down (CSD) were tested to evaluate the AC-magnetic susceptibility behaviors. It is demonstrated that the magnetic interactions are important for x = 0.02 NHFs.

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Last updated on 2019-21-11 at 10:40