| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
|
|
|---|---|---|
| Page(s) | C8-773 - C8-774 | |
| DOI | https://doi.org/10.1051/jphyscol:19888349 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-773-C8-774
DOI: 10.1051/jphyscol:19888349
1 Centre d'Etudes Nucléaires, DRF/SPh-MDN, 85 X, 38041 Grenoble Cedex, France
2 On leave from Kamerlingh Onnes Laboratory, University of Keiden, The Netherlands.
3 CNRS/CRTBT, 166 X, 38042 Grenoble Cedex, France
4 Département de Physique de la Matière Condensée, Université de Genève, Switzerland
5 Institut Laue Langevin, 156 X, 38042 Grenoble Cedex, France
J. Phys. Colloques 49 (1988) C8-773-C8-774
DOI: 10.1051/jphyscol:19888349
TEMPERATURE AND MAGNETIC FIELD DEPENDENCE OF MAGNETIC CORRELATIONS IN THE HEAVY FERMION COMPOUND CeCu6
L. P. Regnault1, W. A. C. Erkelens1, 2, J. Rossat-Mignod1, J. L. Jacoud1, J. Flouquet3, J. M. Mignot3, E. Walker4, D. Jaccard4, A. Amato4 et C. Vettier51 Centre d'Etudes Nucléaires, DRF/SPh-MDN, 85 X, 38041 Grenoble Cedex, France
2 On leave from Kamerlingh Onnes Laboratory, University of Keiden, The Netherlands.
3 CNRS/CRTBT, 166 X, 38042 Grenoble Cedex, France
4 Département de Physique de la Matière Condensée, Université de Genève, Switzerland
5 Institut Laue Langevin, 156 X, 38042 Grenoble Cedex, France
Abstract
Inelastic neutron scattering experiments have been performed on the heavy fermion compound CeCu6 at very low temperatures (T >≈ 20 mK) and under magnetic fields up to 50 kOe. The analysis of the data shows that the magnetic scattering is the superposition of a single site contribution of Lorentzian type and of a broadened inelastic contribution associated with AF correlations. These correlations saturate below T ~ 1.5 - 2 K (~TK/2) and are completely destroyed above 40 kOe.