期刊
出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.phpro.2013.10.011
关键词
Nanoparticles; Spinel ferrite; Structure and Morphology
Mono-dispersed NiFe2O4 nanoparticles have been synthesized using a stable ferric salt of FeCl3 with co-precipitation technique, for study of their structural, morphological and magnetic properties. The XRD pattern conforms the formation of FCC structure with the lattice constant approximate to 8.31A degrees. The crystallite size was found to increase with the bath temperature ranging from 33nm to 55nm. The AFM results revealed that uniform disc shaped particles were obtained. The resistivity measurements show a metal like to semiconductor transition, which depends on the size of the grains. The magnetic study reveals that saturation magnetization increases with the grain thickness. (C) 2013 The Authors. Published by Elsevier B.V.
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