Hashim, Mohd. and Shirsath, Sagar E. and Meena, S. S. and Mane, M. L. and Kumar, Shalendra and Bhatt, Pramod and Kumar, Ravi and Prasad, N. K. and Alla, S. K. and Shah, Jyoti and Kotnala, R. K. and Mohammed, K. A. and Sentürk, Erdogan and -, Alimuddin (2015) Manganese ferrite prepared using reverse micelle process: Structural and magnetic properties characterization. Journal of Alloys and Compounds, 642. pp. 70-77. ISSN 0925-8388

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Reverse microemulsion process was employed to prepare of nanocrystalline Mn3+ substituted MnFe2-xMnxO4 ferrites. The structural, magnetic and dielectric properties were studied for different concentrations of Mn3+. The structural and microstructural properties were analyzed using X-ray diffraction technique (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and Fourier transform infrared (FT-IR) spectroscopy techniques. The phase identification of the materials was studied by Rietveld refined XRD patterns which reveals single phase with cubic symmetry for the samples. The lattice parameters were ranged in between 8.369 and 8.379 angstrom and do not show any significant change with the substitution of Mn3+. The average particles size was found to be around 11 +/- 3 nm. Magnetization results obtained from the vibrating sample magnetometer (VSM) confirm that the substitution of Mn3+ in MnFe2O4 ferrite caused an increase in the saturation magnetization and coercivity. The dependence of Mossbauer parameters on Mn3+ substitution has been analyzed. Magnetic behavior of the samples were also studied at field cooled (FC) and zero field cooled (ZFC) mode. The dependence of Mossbauer parameters on Mn3+ substitution was also analyzed. All the magnetic characterization shows that Mn3+ substitution enhance the magnetic behavior of MnFe2O4 ferrite nanoparticles.

Item Type: Article
Uncontrolled Keywords: Nanostructured materials Chemical synthesis Magentisation Mössbauer spectroscopy X-ray diffraction
Subjects: Chemistry > Physical Chemistry
Materials Science
Metallurgy & Metallurgical Engineering
Depositing User: Dr. Rajpal Walke
Date Deposited: 29 Sep 2016 06:38
Last Modified: 29 Sep 2016 06:38
URI: http://npl.csircentral.net/id/eprint/1894

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