| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|---|---|---|
| Page(s) | C8-1109 - C8-1110 | |
| DOI | https://doi.org/10.1051/jphyscol:19888509 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-1109-C8-1110
DOI: 10.1051/jphyscol:19888509
1 Laboratoire de Physique des Solides, associé au CNRS, INSA, av. de Rangueil, 31077 Toulouse Cedex, France
2 Laboratoire Léon Brillouin (CEA-CNRS), CEN Saclay, 91191 Gif-sur-Yvette Cedex, France
J. Phys. Colloques 49 (1988) C8-1109-C8-1110
DOI: 10.1051/jphyscol:19888509
SPIN CORRELATIONS IN THE INSULATING SPIN GLASS FexMg1-xCl2
D. Bertrand1 et D. Petitgrand21 Laboratoire de Physique des Solides, associé au CNRS, INSA, av. de Rangueil, 31077 Toulouse Cedex, France
2 Laboratoire Léon Brillouin (CEA-CNRS), CEN Saclay, 91191 Gif-sur-Yvette Cedex, France
Abstract
Spin correlations have been studied in the dilute system FexMg1-xCl2 for x = 0.45 and x = 0.55 by neutron scattering. In Fe0.55Mg0.45Cl2, the correlation lengths ξ|| and ξ⊥ are found to decrease abruptly above 30 kG and reach at 50 kG values of 14 Å of the same order of magnitude as those of Fe0.45Mg0.55Cl2.