Enhanced exchange in the itinerant ferromagnet UFe2
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.
Bibliographic Reference: Article : Europhysics Letters (1996)
Record Number: 199610758 / Last updated on: 1996-08-16
Original language: en
Available languages: en