Enhanced exchange in the itinerant ferromagnet UFe2

L. Paolasini, G.H. Lander, S.M. Shapiro, R. Caciuffo, B. Lebech, L.P. Regnault, B. Roessli, J.-M. Fournier

    Research output: Contribution to journalJournal articleResearch

    Abstract

    Neutron inelastic-scattering experiments on the itinerant ferromagnet UFe2 have shown that the strong hybridization between the U 5 (f) under bar and Fe 3 (d) under bar 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.
    Original languageEnglish
    JournalEPL
    Volume34
    Issue number6
    Pages (from-to)459-464
    ISSN0295-5075
    DOIs
    Publication statusPublished - 20 May 1996

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