J. Phys. I France
Volume 1, Numéro 10, October 1991
Page(s) 1499 - 1510
DOI: 10.1051/jp1:1991222
J. Phys. I France 1 (1991) 1499-1510

Coexistence of magnetic and mixed valence states in $\mathsf{Ce_{5}}$Rh 4

J. G. Sereni1, G. Nieva1, J. P. Kappler2 and P. Haen3

1  Centro Atomico Bariloche, 8400 Bariloche, Argentina
2  I.P.C.M.S., Groupe d'Etude des Matériaux Métalliques, 3 rue de l'Université, 67084 Strasbourg, France
3  Centre de Recherches sur les Très Basses Températures, Centre National de la Recherche Scientifique, B.P. 166, 38042 Grenoble Cedex 9, France

(Received 13 March 1991, revised 3 April 1991, accepted 24 June 1991)

Magnetic, specific heat and resistivity measurements lead to assume that in the Ce 5Rh 4 compound the three different Ce local environments induce two kinds of ground states. The atoms in the position I order magnetically with a Néel temperature of $T_{\rm N}=0.75$ K and those in position II and III are responsible for a Kondo-like behaviour. The Ce L $_{\rm III}$ X-ray absorption witnesses the presence of a Mixed Valence ground state.

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