| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
|
|
|---|---|---|
| Page(s) | C8-729 - C8-730 | |
| DOI | https://doi.org/10.1051/jphyscol:19888331 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-729-C8-730
DOI: 10.1051/jphyscol:19888331
1 DPhG/SPSRM, CEN-Saclay, 91191 Gif-sur-Yvette Cedex, France
2 Dept. de Fisica, Fac. de Ciencias, U.C.V., Caracas, Venezuela
J. Phys. Colloques 49 (1988) C8-729-C8-730
DOI: 10.1051/jphyscol:19888331
MÖSSBAUER RELAXATION MEASUREMENTS ON Yb IN LaBel3 : INFLUENCE OF KONDO EFFECT AND SUPERCONDUCTIVITY
P. Bonville1, P. Imbert1, G. Jéhanno1 et F. Gonzalez-Jimenez21 DPhG/SPSRM, CEN-Saclay, 91191 Gif-sur-Yvette Cedex, France
2 Dept. de Fisica, Fac. de Ciencias, U.C.V., Caracas, Venezuela
Abstract
Low temperature Mössbauer measurements are reported on 170Yb in LaBe13. Paramagnetic relaxation of Yb3+ was analysed and interpreted in terms of a Kondo behaviour of Yb3+. A superconducting transition was found at Tc~ 0.27 K ; the Yb3+ relaxation rate well below Tc is strongly reduced due to Cooper pairing of conduction electrons.