Ezzat Elfadaly - Academia.edu (original) (raw)
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Papers by Ezzat Elfadaly
Applied Physics A
In this article the author name M. H. Aly was incorrectly written as Mobarak Hassan Aly. The orig... more In this article the author name M. H. Aly was incorrectly written as Mobarak Hassan Aly. The original article has been corrected.
Applied Physics A
Mn-substituted Co–Zn ferrite nanomaterials with the general form Co0.8−x Mnx Zn0.2 Fe2O4 (x = 0.0... more Mn-substituted Co–Zn ferrite nanomaterials with the general form Co0.8−x Mnx Zn0.2 Fe2O4 (x = 0.0, 0.1, 0.2, and 0.3) were prepared using the coprecipitation method. Based on X-ray diffraction, it can be confirmed that all samples have a single-phase cubic structure with an average crystallite size ranging from 23.46 to 32.66 nm. In addition, the lattice parameter increased from 8.32 to 8.37 Å. In this study, the theoretical density was calculated, and the Fourier-transform infrared spectra of the prepared samples were investigated. Further, the cation distribution of the system was estimated. The proposed cation distribution was confirmed by calculating the theoretical lattice parameter and comparing it with the experimental lattice parameter. We conducted transmission electron microscopy to confirm the obtained particle size. At room temperature, the electrical measurements of the prepared samples were performed using the LCR circuit as a function of frequency up to 5 MHz. In this...
ECS Journal of Solid State Science and Technology
A series of Co0.8−x Mnx Zn0.2 Fe2O4 (x = 0.0 to 0.3 instep of 0.1) was prepared using the copreci... more A series of Co0.8−x Mnx Zn0.2 Fe2O4 (x = 0.0 to 0.3 instep of 0.1) was prepared using the coprecipitation method. We investigated the structural and magnetic properties ascribed to the Mn+2 substitution. A single-phase spinel cubic ferrite nanoparticle with no extra peaks, supporting pure phase formation which confirmed by the X-ray analysis while the morphology studies has been examined using SEM, whose results showed an agglomeration to spherical shaped nanoparticles. The expected stoichiometry was confirmed by EDX analysis. By using VSM, the magnetic parameters measurements were performed at room temperature. The prepared samples exhibit soft ferrimagnetism from M–H loops. By increasing the Mn content, the saturation magnetization was found to decrease. Based on Neel’s two sublattice model of ferrimagnetism, and according to the cation distribution over A and B sites, the magnetic moments were estimated in all the samples from measured magnetic parameters. Based on the magnetic p...
Applied Physics A
In this article the author name M. H. Aly was incorrectly written as Mobarak Hassan Aly. The orig... more In this article the author name M. H. Aly was incorrectly written as Mobarak Hassan Aly. The original article has been corrected.
Applied Physics A
Mn-substituted Co–Zn ferrite nanomaterials with the general form Co0.8−x Mnx Zn0.2 Fe2O4 (x = 0.0... more Mn-substituted Co–Zn ferrite nanomaterials with the general form Co0.8−x Mnx Zn0.2 Fe2O4 (x = 0.0, 0.1, 0.2, and 0.3) were prepared using the coprecipitation method. Based on X-ray diffraction, it can be confirmed that all samples have a single-phase cubic structure with an average crystallite size ranging from 23.46 to 32.66 nm. In addition, the lattice parameter increased from 8.32 to 8.37 Å. In this study, the theoretical density was calculated, and the Fourier-transform infrared spectra of the prepared samples were investigated. Further, the cation distribution of the system was estimated. The proposed cation distribution was confirmed by calculating the theoretical lattice parameter and comparing it with the experimental lattice parameter. We conducted transmission electron microscopy to confirm the obtained particle size. At room temperature, the electrical measurements of the prepared samples were performed using the LCR circuit as a function of frequency up to 5 MHz. In this...
ECS Journal of Solid State Science and Technology
A series of Co0.8−x Mnx Zn0.2 Fe2O4 (x = 0.0 to 0.3 instep of 0.1) was prepared using the copreci... more A series of Co0.8−x Mnx Zn0.2 Fe2O4 (x = 0.0 to 0.3 instep of 0.1) was prepared using the coprecipitation method. We investigated the structural and magnetic properties ascribed to the Mn+2 substitution. A single-phase spinel cubic ferrite nanoparticle with no extra peaks, supporting pure phase formation which confirmed by the X-ray analysis while the morphology studies has been examined using SEM, whose results showed an agglomeration to spherical shaped nanoparticles. The expected stoichiometry was confirmed by EDX analysis. By using VSM, the magnetic parameters measurements were performed at room temperature. The prepared samples exhibit soft ferrimagnetism from M–H loops. By increasing the Mn content, the saturation magnetization was found to decrease. Based on Neel’s two sublattice model of ferrimagnetism, and according to the cation distribution over A and B sites, the magnetic moments were estimated in all the samples from measured magnetic parameters. Based on the magnetic p...