Journal article
Correlation between chemical composition, electrical, magnetic and microwave properties in Dy-substituted Ni-Cu-Zn ferrites


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Author list: M. A. Almessiere, Y. Slimani, H. Güngüneş, A. Demir Korkmaz, S. V. Trukhanov, S. Guner, F. Alahmari, A. V. Trukhanov, and A. Baykal
Publisher: Elsevier
Publication year: 2021
Journal: Materials science and engineering. B, Solid-state materials for advanced technology
Journal name in source: Materials Science and Engineering: B
Volume number: 270
Issue number: August 2021
Start page: 1
End page: 12
Number of pages: 12
ISSN: 0921-5107
Web of Science ID:
PubMed ID:
Scopus ID: 85105074107


Dy3+ ion-substituted nanoferrites Ni0.4Cu0.2Zn0.4Fe2−xDyxO4 (x ≤ 0.04) were produced via sol-gel method. Correlation between chemical composition, crystal structure, electrical, magnetic and microwave properties was investigated. All samples were characterized by single-phase state. It was observed that the increase of the Dy content leads to a decrease in the average crystallite size. The bandgap (Eg) was deduced to be between 1.83 and 1.86 eV. The measurements of magnetization versus applied magnetic field (M-H) and magnetization versus temperature (M-T) were investigated by vibrating sample magnetometer (VSM). Magnetic measurements revealed superparamagnetic character at room temperature. The magnetization was increased initially with doping Dy3+ in the ratio of x = 0.01 compering to the un-doped sample and thereafter dropped as Dy3+ ions content further increases. Microwave properties were discussed in terms of electromagnetic absorption in the frequency range 1–20 GHz. The occurrences of the intensive electromagnetic absorption in the frequency ranged from 1.6 to 2.7 GHz were observed. The changes in the amplitude-frequency characteristics correlated well with the level of chemical substitution (x) with Dy ions concentration.


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Last updated on 2021-20-05 at 10:35