| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|
|---|---|---|
| Page(s) | C8-1019 - C8-1020 | |
| DOI | https://doi.org/10.1051/jphyscol:19888464 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-1019-C8-1020
DOI: 10.1051/jphyscol:19888464
1 Laboratoire de Physique des Solides, Université Paris-Sud, 91405 Orsay, France
2 Laboratoire Léon Brillouin, CEN Saclay, 91191 Gif sur Yvette, France
J. Phys. Colloques 49 (1988) C8-1019-C8-1020
DOI: 10.1051/jphyscol:19888464
NEUTRON INVESTIGATION OF THE SPIN GLASS ORDER PARAMETER FOR T << Tg
H. Alloul1, B. Hennion2 et P. Mendels11 Laboratoire de Physique des Solides, Université Paris-Sud, 91405 Orsay, France
2 Laboratoire Léon Brillouin, CEN Saclay, 91191 Gif sur Yvette, France
Abstract
Inelastic neutron scattering experiments have been performed on a Cu80Mn20 RKKY spin glass. The quasi elastic scattering is found negligibly small below Tg / 2 while a q independent T2 decrease of the magnetic elastic intensity is shown. The corresponding variation of the order parameter perfectly agrees with that obtained from local and remanent magnetization measurements.