SYNTHESIZE AND INVESTIGATION OF MAGNETIC AND STRUCTURAL PROPERTIES OF MNFE2O4 NANOPARTICLES SUBSTITUTED BY CO2+

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NIAEIFAR M.; MARAHEMI F.; HASANPOUR A.; AMIGHIAN J.

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Journal: Iranian Journal of Crystallography and Mineralogy Year:2014 | Volume:22 | Issue:1 Page(s): 149-154

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Title

SYNTHESIZE AND INVESTIGATION OF MAGNETIC AND STRUCTURAL PROPERTIES OF MNFE2O4 NANOPARTICLES SUBSTITUTED BY CO2+

Author(s)

NIAEIFAR M. | MARAHEMI F. | HASANPOUR A. | AMIGHIAN J. | Issue Writer Certificate

Keywords

NANOPARTICLESQ2

CO-MN FERRITEQ2

MAGNETIC PROPERTIESQ2

Abstract

In this research CoxMn1-xFe2O4 nano particles (0£x£0.7), using high purity metal nitrates and citric acid have been prepared by sol gel auto combustion method. The obtained powders were characterized by XRD, FT-IR, SEM and VSM analysis. The XRD patterns showed that the formed crystallites were all in the cubic single phase and the formed crystallite belongs to the space group Fd3m and average particle size was 20 nm. It is observed that for x£0.5, ions Co2+ substituted into MnFe2O4 tends to increase the lattice parameter and for x=0.7, tends to reduce the lattice parameter. FT-IR spectra showed that the metal-oxide vibration band 570 cm-1 assigned the band to the tetrahedral group that corroborated the spinel structure.By the SEM micrographs of the CO-MN FERRITE samples studied, and it can be seen that particles of samples are spherical in shape with the average grain size varies between 50 nm and 80 nm. Hysteresis loops of the samples were obtained by Vibration Sample Magnetometer (VSM) demonstrated an initial increase in the saturation magnetization for x£0.5, then decreases for x=0.7 caused to the difference in the contributions from the magnetic moments of the substituted ions on tetrahedral sites and octahedral sites in the spinel ferrite.

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References

PREPARATION OF COBALT-ZINC FERRITE NANOPARTICLES AND INVESTIGATION OF THE VARIATION OF BLOCKING TEMPERATURE WITH SUBSTITUTION OF COBALT BY ZINC IN AN ALTERNATIVE MAGNETIC FIELD AT DIFFERENT FREQUENCIES

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APA: Copy

NIAEIFAR, M., MARAHEMI, F., HASANPOUR, A., & AMIGHIAN, J.. (2014). SYNTHESIZE AND INVESTIGATION OF MAGNETIC AND STRUCTURAL PROPERTIES OF MNFE₂O₄ NANOPARTICLES SUBSTITUTED BY CO²⁺. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, 22(1), 149-154. SID. https://sid.ir/paper/4253/en

Vancouver: Copy

NIAEIFAR M., MARAHEMI F., HASANPOUR A., AMIGHIAN J.. SYNTHESIZE AND INVESTIGATION OF MAGNETIC AND STRUCTURAL PROPERTIES OF MNFE₂O₄ NANOPARTICLES SUBSTITUTED BY CO²⁺. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY[Internet]. 2014;22(1):149-154. Available from: https://sid.ir/paper/4253/en

IEEE: Copy

M. NIAEIFAR, F. MARAHEMI, A. HASANPOUR, and J. AMIGHIAN, “SYNTHESIZE AND INVESTIGATION OF MAGNETIC AND STRUCTURAL PROPERTIES OF MNFE₂O₄ NANOPARTICLES SUBSTITUTED BY CO²⁺,” IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, vol. 22, no. 1, pp. 149–154, 2014, [Online]. Available: https://sid.ir/paper/4253/en

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