Impacts of neodymium on structural,spectral and dielectric properties of LiNi0.5Fe2O4 nanocrystalline ferrites fabricated via micro-emulsion technique |
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| Institution: | 1. Department of Physics, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan;2. Department of Physics, Balochistan University of Information Technology, Engineering and Management Sciences, Quetta 87300, Pakistan;3. Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan;4. College of Engineering, King Saud University, PO Box 800, Riyadh 11421, Saudi Arabia;1. Department of Physics, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan;2. Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan;3. Deanship of Scientific Research, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia;1. Physics Department, Faculty of Science, Zagazig University, Zagazig, Egypt;2. Materials Science and Nanotechnology Department, Faculty of Post graduate Studies for Advanced Sciences, (PSAS), Beni-Suef University, Beni-Suef, Egypt;1. Department of Physics, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan;2. Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan;3. Deanship of Scientific Research, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia;4. Materials Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia;1. Department of Physics, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan;2. Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan;3. Deanship of Scientific Research, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia;4. Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS Institute of Information Technology (CIIT), Lahore, Pakistan;5. Physics Division, Pakistan Institute of Nuclear Science and Technology, P.O. Nilore, Islamabad, Pakistan;1. Institute of Nanomaterials and Nanotechnologies, MAScIR, Rabat, Morocco;2. Laboratory of Magnetism and the Physics of the High Energy, URAC 12, Department of Physics, Faculty of Science, Mohammed V, Agdal University, BP 1014, Rabat, Morocco;3. Laboratory of Materials, Processes, Environment and Quality, Cady Ayyed University, National School of Applied Sciences, Route Sidi Bouzid, BP 63 46000, Safi, Morocco;4. Hassan II Academy of Science and Technology, Rabat, Morocco;5. Institut Néel, CNRS-UJF, B.P. 166, 38042 Grenoble Cedex, France |
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| Abstract: | Soft ferrites are technologically advanced smart materials and their properties can be tailored by controlling the chemical composition and judicial choice of the metal elements. In this article we discussed the effect of rare earth neodymium (Nd3+) on various properties of LiNi0.5NdxFe2−xO4 spinel ferrites. These ferrites have been synthesized by facile micro-emulsion route and characterized by X-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR), a.c. electrical conductivity and thermal analysis. The influence of Nd3+ doping on structural and electrical parameters has been investigated. XRD analysis revealed the formation of single cubic spinel structure for x≤0.07. Few traces of secondary phase (NdFeO3) were found for x≥0.105. The secondary phase induced owing to the solubility limit of Nd3+ cations in these ferrites. The lattice parameter (a) and crystallite size (D) both exhibit non-linear relation. The values of “a” and “D” were found in the range 8.322–8.329 Å and 25–32 nm respectively. These variations were attributed to the larger ionic radius of Nd3+ cations as compared to the host cations and lattice strain produced in these ferrites. The dielectric parameters were studied in the range 1 MHz to 3 GHz and these parameters were damped by Nd3+ incorporation and also by increasing the frequency. The reduced dielectric parameters observed in wide frequency range proposed that these nanocrystalline ferrites are potential candidates for fabricating the devices which are required to operate at GHz frequencies. |
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| Keywords: | Nano-ferrites XRD FTIR Dielectric properties |
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