| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
|
|
|---|---|---|
| Page(s) | C8-1185 - C8-1190 | |
| DOI | https://doi.org/10.1051/jphyscol:19888541 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-1185-C8-1190
DOI: 10.1051/jphyscol:19888541
Laboratoire de Physique des Solides, Université Paris-Sud, 91405 Orsay, France
J. Phys. Colloques 49 (1988) C8-1185-C8-1190
DOI: 10.1051/jphyscol:19888541
MAGNETIC PROPERTIES NEAR THE METAL INSULATOR TRANSITION IN Si:P
H. Alloul et P. DellouveLaboratoire de Physique des Solides, Université Paris-Sud, 91405 Orsay, France
Abstract
31P NMR data allow to demonstrate that Coulomb interactions induce spin localisation in slightly metallic Si:P. The observed nuclei are associated with delocalised electrons (weak non enhanced Pauli susceptibility, nuclear Korringa relaxation). The fraction of localised spins, which wipe out 31P nuclei from the observed signal, increases through the transition.