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|Title:||Enhanced Exchange in the Itinerant Ferromagnet UFe2|
|Authors:||PAOLASINI Luigi; LANDER Gerard heath; SHAPIRO S.m.; CACIUFFO R.; LEBECH B.; REGNAULT L.p.; ROESSLI B.; FOURNIER J.m.|
|Citation:||Europhysics Letters vol. 34 no. 6 p. 459-464|
|Type:||Articles in periodicals and books|
|Abstract:||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.|
|JRC Directorate:||Nuclear Safety and Security|
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