| Numéro |
J. Phys. IV France
Volume 07, Numéro C1, Mars 1997
7th INTERNATIONAL CONFERENCE ON FERRITES
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|---|---|---|
| Page(s) | C1-505 - C1-508 | |
| DOI | https://doi.org/10.1051/jp4:19971207 | |
7th INTERNATIONAL CONFERENCE ON FERRITES
J. Phys. IV France 07 (1997) C1-505-C1-508
DOI: 10.1051/jp4:19971207
1 Laboratoire SRSI, URA 1662 du CNRS, Université P. et M. Curie (Paris VI), BP. 52, 4 Place Jussieu, 75231 Paris cedex 05, France
2 C.E.A. - C.E. Saclay, DRECAM-S.C.M, 91191 Gif sur Yvette cedex, France
3 C.E.A. - C.E. Saclay, DRECAM-S.P.E.C., 91191 Gif sur Yvette cedex, France
4 Institut d'Electronique Fondamentale URA 22 du CNRS, Centre Universitaire d'Orsay, Bât. 220, 91405 Orsay cedex, France
© EDP Sciences 1997
J. Phys. IV France 07 (1997) C1-505-C1-508
DOI: 10.1051/jp4:19971207
Control of the Size of Cobalt Ferrite Nanoparticles : Synthesis and Properties
M.P. Pileni1, 2, N. Moumen1, J.F. Hochepied1, P. Bonville3 and P. Veillet41 Laboratoire SRSI, URA 1662 du CNRS, Université P. et M. Curie (Paris VI), BP. 52, 4 Place Jussieu, 75231 Paris cedex 05, France
2 C.E.A. - C.E. Saclay, DRECAM-S.C.M, 91191 Gif sur Yvette cedex, France
3 C.E.A. - C.E. Saclay, DRECAM-S.P.E.C., 91191 Gif sur Yvette cedex, France
4 Institut d'Electronique Fondamentale URA 22 du CNRS, Centre Universitaire d'Orsay, Bât. 220, 91405 Orsay cedex, France
Abstract
The preparation of a fluid of cobalt ferrite particles having a size varying from 2 to 5nm is described. This has been achieved by using functionalized surfactants. The size of cobalt ferrite particles decreases when the total reactant concentration decreases. The magnetic properties are described with magnetization curves and 57Fe mössbauer spectroscopy. It is demonstrated that these particles are characterized by a superparamagnetic behavior.
© EDP Sciences 1997