Investigation of the Effect of Chromium Replacing with Cerium in Magnesium Ferrite on the Dielectric and Structural Properties

Authors Hamed A. Younis1, Wissam A. Hussian1, Omar A. Ahmed1, Mustafa H. Omar2

1The General Directorate for Education in Diyala, Diyala, Iraq

2Department of Materials Engineering, College of Engineering, University of Diyala, Diyala, Iraq

Issue Volume 15, Year 2023, Number 5
Dates Received 15 July 2023; revised manuscript received 18 October 2023; published online 30 October 2023
Citation Hamed A. Younis, Wissam A. Hussian, Omar A. Ahmed, et al., J. Nano- Electron. Phys. 15 No 5, 05018 (2023)
PACS Number(s) 77.22. – d, 81.20.Fw
Keywords MgFe2O4, Dielectric properties (6) , Sol-Gel (17) , TEM (76) , FTIR (29) .

The structural and dielectric properties of cerium-chromium substitution in magnesium ferrite (x = 0, 0.1, 0.3, 0.5) prepared by spontaneous combustion of citric acid and calcined at a temperature of (1000 °C) were studied. The compositional characterization of the samples was carried out using XRD, FTIR, TEM, and the dielectric properties were measured using LCR. X-ray diffraction revealed the composition of the cubic spinel. The crystal size of magnesium ferrite was within (18-31 nm) and the lattice constant (8.327-8.393 Å). It was observed that the FTIR spectra of the compound MgCr0.5 – xCexFe1.5O4 remained in the spinel phase with a change in the concentration of Ce3+.Electron microscopy measurements showed that there are different lattice tips with potential d-spacing for Cr2O3, CeO2 and (-Fe2O3 phases. The d-spacing value of the most prominent ring in the (311) crystal planes of MgFe2O4 was close to its value in X-ray diffraction. It was found that the dielectric constant and the dielectric loss coefficient decreased with the increment in the frequency of the applied electric field and the alternating conductivity.

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