Enhanced Exchange in the Itinerant Ferromagnet UFe2
Neutron inelastic scattering experiments on the itinerant ferromagnet UFe2 have shown that the strong hybridization between the U 5f and Fe3d electrons results in a number of major changes compared to the physics of the isotructural RFe2 (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 RFe2 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.
PAOLASINI Luigi;
LANDER Gerard Heath;
SHAPIRO S.M.;
CACIUFFO R.;
LEBECH B.;
REGNAULT L.P.;
ROESSLI B.;
FOURNIER J.M.;
1996-08-08
JRC13198
https://publications.jrc.ec.europa.eu/repository/handle/JRC13198,
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