Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10714282 | Physica B: Condensed Matter | 2012 | 4 Pages |
Abstract
Nanocrystalline Nickel ferrite (NiFe2O4) and Zn substituted nickel ferrite (NiZnFe2O4) have been synthesized by the refluxing method. These ferrites were characterized by XRD, TEM, Mossbauer spectroscopy and VSM in order to study the effect of zinc substitution in nickel ferrite. XRD diffraction results confirm the spinel structure for the prepared nanocrystalline ferrites with an average crystallite size of 14-16Â nm. Lattice parameter was found to increase with the substitution of Zn2+ ions from 8.40Â Ã
to 8.42Â Ã
. TEM images confirmed average particle size of about 20Â nm and indicates nanocrystalline nature of the compounds. A shift in isomeric deviation with the doublet was observed due to the influence of Zn substitution in the nickel ferrite. The Zn content has a significant influence on the magnetic behavior and electrical conductivity of NiFe2O4. Saturation magnetization drastically increased whereas room temperature electrical conductivity decreased due to the addition of Zn content in NiFe2O4, indicating super magnetic material with lesser coercivity.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
A.I. Nandapure, S.B. Kondawar, P.S. Sawadh, B.I. Nandapure,