 | Nanotech 2007 Vol. 4
Technical Proceedings of the 2007 NSTI Nanotechnology Conference and Trade Show, Volume 4
Chapter 2: Nanoparticles |
Magnetic Properties of Multi- and Sigle-Domain Particles of CuxNi1-xFe2O4 Ferrites | |
| Authors: | J.Z. Msomi and T. Moyo |
| Affilation: | University of the Free State, ZA |
| Pages: | 397 - 400 |
| Keywords: | msomi |
| Abstract: | The crossover effect from multi- to single-domain particles on the magnetic properties of CuxNi1-xFe2O4 oxides due to grain size reduction to nanometre scale is investigated. The properties of the bulk and nanosized oxide have been studied by x-ray diffraction, Mössbauer spectroscopy and magnetization measurements. The Mössbauer spectra for milled nanosized powders show a combination of ferrimagnetic and paramagnetic behaviour. The coercive fields is found to increase with reduction in grain size for multi-domain particles. For single-domain particles, is observed to decrease with decrease in grain size. |
| ISBN: | 1-4200-6376-6 |
| Pages: | 768 |
| Hardcopy: | $139.95 |
| Order: | Mail/Fax Form |
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