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https://open.uns.ac.rs/handle/123456789/7270
Title: | Temperature induced evolution of structure/microstructure parameters and their correlations with electric/magnetic properties of nanocrystalline Nickel ferrite | Authors: | Vučinić-Vasić, Milica Boskovic M. Antić, Aco Stojanović, Goran Radovanović, Milan Fabian M. Jovalekic C. Pavlović, Miroslav Antić, Boris |
Issue Date: | 1-Apr-2014 | Journal: | Ceramics International | Abstract: | Nickel ferrite nanoparticles were annealed in order to find dependence of electric/magnetic properties on crystallite size. The following correlations of crystallite size with physical parameters were found: (a) lattice parameter decreases with the increase in size and it reaches value for bulk counterpart approximately for crystallites bigger than 7 nm, (b) ac electrical resistivity at room temperature increases with the increase in crystallite size, (c) for crystallites of ~7 nm or smaller electrical resistivity have maximum value at 50 C, (d) the real part of permittivity at selected frequency generally decreases with the increase in crystallite size and (e) magnetization increases with the increase in crystallite size. Deviation of stoichiometry, cation polyvalence, and cation redistribution with annealing are the main factors that influence physical properties of Nickel ferrite nanoparticles. © 2013 Elsevier Ltd and Techna Group S.r.l. | URI: | https://open.uns.ac.rs/handle/123456789/7270 | ISSN: | 2728842 | DOI: | 10.1016/j.ceramint.2013.08.127 |
Appears in Collections: | FTN Publikacije/Publications |
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