| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|
|---|---|---|
| Page(s) | C8-685 - C8-690 | |
| DOI | https://doi.org/10.1051/jphyscol:19888311 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-685-C8-690
DOI: 10.1051/jphyscol:19888311
IPCMS (um CNRS-ULP-EHICS) Groupe d'Etude des Matériaux Métalliques, 4 rue Blaise Plascal, F67070 Strasbourg, France
J. Phys. Colloques 49 (1988) C8-685-C8-690
DOI: 10.1051/jphyscol:19888311
NMR STUDY OF ELECTRON SPIN FLUCTUATIONS IN INTERMEDIATE VALENT AND HEAVY FERMION SYSTEMS
P. Panissod, M. Benakki et A. QachaouIPCMS (um CNRS-ULP-EHICS) Groupe d'Etude des Matériaux Métalliques, 4 rue Blaise Plascal, F67070 Strasbourg, France
Abstract
Spin fluctuations have been studied by NMR in several cerium, ytterbium and uranium compounds exhibiting intermediate valent, Kondo or heavy fermion properties. From this study a universal thermal dependence of the f electron spin fluctuation rate emerges, at least in the 4f systems. The results are discussed by comparison with a numerical calculation by Cox in the Anderson's model and exact Bethe Ansatz results.