Structural properties and magnetic interactions in Sr-doped Mg–Mn nanoparticle ferrites

Amer, M.A.; Meaz, T.M.; Hashhash, A.; Attalah, S.S.; Ghoneim, A.I.

doi:10.1016/j.matchemphys.2015.06.013

Cited by 24 publications

(8 citation statements)

References 33 publications

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“…The remarkable carbon proportions that are seen in EDX spectra arise from ethylene glycol and citric acid. [73][74][75] Further, Fig. 7 exhibits the elemental mapping images of Ag 0.75 @ZFO NPs.…”

Section: Characterization Of Zfo Nps and Ag-decorated Zfo Npsmentioning

confidence: 99%

Antibacterial and antibiofilm activities of silver-decorated zinc ferrite nanoparticles synthesized by a gamma irradiation-coupled sol–gel method against some pathogenic bacteria from medical operating room surfaces

et al. 2021

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Section: Characterization Of Zfo Nps and Ag-decorated Zfo Npsmentioning

confidence: 99%

Antibacterial and antibiofilm activities of silver-decorated zinc ferrite nanoparticles synthesized by a gamma irradiation-coupled sol–gel method against some pathogenic bacteria from medical operating room surfaces

et al. 2021

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“…The reduction in the crystallite size of cobalt ferrite through substitution with non-magnetic ions was well observed [49]. The prepared samples showed negative going up microstrains due to the different ionic radii between Co and Zn which indicated that they underwent compressive strains [53].…”

Section: Structure Investigationsmentioning

confidence: 69%

“…From this figure, distinguished peaks could be noticed for Zn, Co, O, C and Fe elements in the samples. Furthermore, by increasing the content of Zn ions, zinc peaks become more intense at the expense of Co 2+ ions' proportion in the samples [53,64]. EDX data confirmed the production of pure nano-structured Co 1−x Zn x Fe 2 O 4 NPs (x = 0.00, 0.25, 0.50, and 0.75) with a little ratio of sulfur ions ascribed to the remnant of sulfate groups from the synthesis process [65].…”

Section: Structure Investigationsmentioning

confidence: 99%

Unveiling the Effect of Zn2+ Substitution in Enrichment of Structural, Magnetic, and Dielectric Properties of Cobalt Ferrite

Maksoud

Elghandour

El-Sayyad

et al. 2020

J Inorg Organomet Polym

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This work reports the detailed structural characterization of Zn 2+ ion-substituted cobalt ferrite nanoparticles (CFO NPs; Co 1−x Zn x Fe 2 O 4 ; x = 0.00, 0.25, 0.50, and 0.75), prepared using a facile sol-gel method. It correlates structural changes with magnetic and dielectric properties. The as-synthesized samples were investigated by X-ray diffraction (XRD) analysis, BET surface area analyzer, energy-dispersive X-ray (EDX), Fourier transform infrared (FTIR), scanning electron microscopy (SEM), vibrating sample magnetometer (VSM), Mössbauer spectroscopy, and impedance analyzer. The pristine sample (CFO) comprised of NPs with 25 nm size, which decreased up to 11 nm upon the formation of Zn 0.75 Co 0.25 Fe 2 O 4 . The N 2 adsorption-desorption isotherm of the prepared Zn 0.5 Co 0.5 Fe 2 O 4 sample confirmed the presence of a mesoporous structure. SEM images revealed that all prepared samples exhibited porous surface with honeycomb-like structures. The cationic distribution was described by Mössbauer spectra. The increment of Zn ions in the prepared samples resulted in sharp reduction of saturation magnetization and remanence values. The normal dielectric dispersion behavior was recorded and can be ascribed to the Maxwell-Wagner type polarization. Besides, the dielectric parameters varied by increasing Zn content in CFO NPs. This may be ascribed to O 2 vacancies and Fe 3+ ions in A-and B-sites. Dielectric studies revealed that, content of Zn ions beyond x = 0.25 was sufficient to reduce both dielectric constant and loss at low frequencies.

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“…represents small intrinsic linewidth (few Oersted) considered in nanoparticle material and can be ignored in polycrystalline ferrites. Moreover, ∆ ∆ are the magnetocrystalline anisotropy and porosity induced line broadening contributions, respectively [26].…”

Section: Fmr Studymentioning

confidence: 99%

Comparative Study of Structure, FMR and Magnetic Properties of Nanocomposite and Mixture Ferrite.

Shater¹

2020

Arab Journal of Nuclear Sciences and Applications

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This investigation presents a design of 20% M-type BaFe12O19 hexaferrite as a core coated by 80% MgFe2O4 spinel ferrite as a shell (〖Mg〗_80-H_20) in addition to, a mixture of 80% MgFe2O4 spinel ferrite and 20% M-type BaFe12O19 hexa-ferrite powders. The spinel and nanocompsite ferrite materials were synthesized by uingthe wet mechano-chemical co-precipitation route. All prepared samples; spinel, nanocomposite and mixture are annealed at 1200 oC for 6 hours. The results of X-ray diffraction patterns, TEM images and the transmitted IR spectra revealed the formation of two different composite materials. The results of ferromagnetic resonance FMR spectra and magnetic hysteresis loops represents contrast between the nanocomposite structure and the mixed material of the same constitutes with the same ratio

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Structural properties and magnetic interactions in Sr-doped Mg–Mn nanoparticle ferrites

Cited by 24 publications

References 33 publications

Antibacterial and antibiofilm activities of silver-decorated zinc ferrite nanoparticles synthesized by a gamma irradiation-coupled sol–gel method against some pathogenic bacteria from medical operating room surfaces

Antibacterial and antibiofilm activities of silver-decorated zinc ferrite nanoparticles synthesized by a gamma irradiation-coupled sol–gel method against some pathogenic bacteria from medical operating room surfaces

Unveiling the Effect of Zn2+ Substitution in Enrichment of Structural, Magnetic, and Dielectric Properties of Cobalt Ferrite

Comparative Study of Structure, FMR and Magnetic Properties of Nanocomposite and Mixture Ferrite.

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