Structural, Magnetic, Optical, and MEM Studies on Co-precipitated X 0 . 4 Zn 0 . 6 Fe 2 O 4 (X = Co, Mn) Nanoferrite Particles

Structural, Magnetic, Optical, and MEM Studies on Co-precipitated X 0 . 4 Zn 0 . 6 Fe 2 O 4 (X =... Cobalt and manganese-substituted zinc ferrite X0.4Zn0.6Fe2O4 (X = Co, Mn) nanoparticles have been synthesized by co-precipitation method and characterized for structural, morphology, and magnetic properties by X-ray diffraction (XRD), scanning electron microscopy (SEM), and vibrating sample magnetometry (VSM). The Rietveld refinement method is employed to refine the XRD powder data, and the structural parameters are calculated from the refinement. Substitution of cobalt and manganese causes the lattice parameter to decrease. Particle size, measured from XRD, lies in the nanometer regime. A low saturation magnetization value is obtained in both samples, and the presence of non-collinear spin arrangement is found at octahedral sites. The maximum entropy method (MEM) is employed to study the strength of the bond between the atoms at tetrahedral and octahedral sites in the unit cell of ferrites. Optical band gap energy of the samples is determined by using UV–VIS techniques. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Superconductivity and Novel Magnetism Springer Journals

Structural, Magnetic, Optical, and MEM Studies on Co-precipitated X 0 . 4 Zn 0 . 6 Fe 2 O 4 (X = Co, Mn) Nanoferrite Particles

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Publisher
Springer US
Copyright
Copyright © 2017 by Springer Science+Business Media New York
Subject
Physics; Strongly Correlated Systems, Superconductivity; Magnetism, Magnetic Materials; Condensed Matter Physics; Characterization and Evaluation of Materials
ISSN
1557-1939
eISSN
1557-1947
D.O.I.
10.1007/s10948-017-4081-x
Publisher site
See Article on Publisher Site

Abstract

Cobalt and manganese-substituted zinc ferrite X0.4Zn0.6Fe2O4 (X = Co, Mn) nanoparticles have been synthesized by co-precipitation method and characterized for structural, morphology, and magnetic properties by X-ray diffraction (XRD), scanning electron microscopy (SEM), and vibrating sample magnetometry (VSM). The Rietveld refinement method is employed to refine the XRD powder data, and the structural parameters are calculated from the refinement. Substitution of cobalt and manganese causes the lattice parameter to decrease. Particle size, measured from XRD, lies in the nanometer regime. A low saturation magnetization value is obtained in both samples, and the presence of non-collinear spin arrangement is found at octahedral sites. The maximum entropy method (MEM) is employed to study the strength of the bond between the atoms at tetrahedral and octahedral sites in the unit cell of ferrites. Optical band gap energy of the samples is determined by using UV–VIS techniques.

Journal

Journal of Superconductivity and Novel MagnetismSpringer Journals

Published: Apr 6, 2017

References

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