Numéro
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
Page(s) C8-1121 - C8-1126
DOI https://doi.org/10.1051/jphyscol:19888515
Proceedings of the International Conference on Magnetism

J. Phys. Colloques 49 (1988) C8-1121-C8-1126

DOI: 10.1051/jphyscol:19888515

MAGNETIC FIELD DEPENDENCE OF STATIC CORRELATIONS AND SPIN DYNAMICS OF REENTRANT SPIN GLASSES STUDIED BY NEUTRON SCATTERING

M. Hennion1, B. Hennion1, I. Mirebeau1, S. Lequien1 et F. Hippert2

1  Laboratoire Léon Brillouin (CEA-CNRS), CEN-Saclay, 91191 Gif-sur-Yvette, France
2  Laboratoire de Physique des Solides, Université Paris-Sud, 91405 Orsay, France


Abstract
We report small angle (SANS) and inelastic neutron scattering in zero and applied field for a-FeMn, NiMn and AuFe at composition where both ferromagnetic and frustration characters occur. We discuss the field evolution of the transverse correlations which arise below Tc. A study of the field dependence of the spin wave anomalies in a-Fe-Mn is reported.