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Neutron inelastic scattering experiments on the itinerant ferromagnet Ufe(2) have shown that the strong hybridization between the U 5f and Fe 3d electrons results in a number of major changes compared to the physics of the isostructural Rfe(2) (R=Tb, Ho, and Er) compounds. We have observed that the Fe-Fe exchange interaction in this compound is actually greater at low temperature than it is in pure iron. This situation is not found in the Rfe(2) compounds. Excitations involving the U moments are heavily damped. We conclude with remarks on the possibility of synthesizing compounds with high Curie temperatures containing uranium.

Additional information

Authors: PAOLASINI L ET AL, CEA, CEN Grenoble (FR);SHAPIRO S M, Brookhaven National Laboratory, Physics Department, New York (US);CACIUFFO R, Università di Ancona, Dipartimento di Scienze dei Materiali e della Terra (IT);LEBECH B, Risø National Laboratory, Physics Department, Roskilde (DK);ROESSLI B, Institut Laue-Langevin, Grenoble (FR);FOURNIER J-M, Université J. Fournier, Grenoble (FR)
Bibliographic Reference: Article : Europhysics Letters (1996)
Record Number: 199610758 / Last updated on: 1996-08-16
Original language: en
Available languages: en