Magneto-structural studies of sol–gel synthesized nanocrystalline manganese substituted nickel ferrites
| Autor: | Imtiaz S. Mulla, S. S. Chavan, P.P. Hankare, R.P. Patil, R.S. Pandav |
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| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Materials science Scanning electron microscope Spinel Analytical chemistry chemistry.chemical_element 02 engineering and technology Manganese engineering.material Coercivity 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Nanocrystalline material Electronic Optical and Magnetic Materials Nickel chemistry Transmission electron microscopy Remanence 0103 physical sciences engineering 0210 nano-technology |
| Zdroj: | Journal of Magnetism and Magnetic Materials. 417:407-412 |
| ISSN: | 0304-8853 |
| Popis: | Nanocrystalline NiFe 2− x Mn x O 4 (2≥ x ≥0) ferrites were prepared by sol–gel method. X-ray diffraction patterns reveal that synthesized compounds are in single phase cubic spinel lattice for all the composition. The surface morphology of all the samples were studied by scanning electron microscopy. The particle size measured from transmission electron microscopy and X-ray diffraction patterns confirms the nanosized dimension of the as-prepared powder. The elemental analysis was carried out by energy dispersive X-ray analysis technique. Magnetic properties such as saturation magnetization, coercivity and remanence are studied as a function of increasing Mn concentration at room temperature. The saturation magnetization shows a decreasing trend with increase in Mn content. The substitution of manganese in the nickel ferrite affects the structural and magnetic properties of cubic spinels. |
| Databáze: | OpenAIRE |
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