| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
|
|
|---|---|---|
| Page(s) | C8-1823 - C8-1824 | |
| DOI | https://doi.org/10.1051/jphyscol:19888833 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-1823-C8-1824
DOI: 10.1051/jphyscol:19888833
Spectrochimie du Solide (U.A. 302), U.P.M.C., 4 Place Jussieu, 75252 Paris Cedex 05, France
J. Phys. Colloques 49 (1988) C8-1823-C8-1824
DOI: 10.1051/jphyscol:19888833
CLUSTERING AND MAGNETIC COUPLING
E. Tronc et J. P. JolivetSpectrochimie du Solide (U.A. 302), U.P.M.C., 4 Place Jussieu, 75252 Paris Cedex 05, France
Abstract
Effects of limited and extensive aggregation on magnetic coupling between γ - Fe2O3 colloids have been investigated by Mössbauer spectroscopy. Various clusters in frozen-in sols have been studied. Magnetic anisotropy constant exhibits a minimum with the aggregation state.