Investigation of Critical Fluctuations near T, in Ferromagnetic UTe

Hans Bjerrum Møller, G. H. Lander, O. Vogt

    Research output: Contribution to journalJournal articleResearch

    Abstract

    The spatial correlations in the long-range magnetic fluctuations near T//c have been measured in UTe by means of neutron scattering. The critical scattering above T//c was fit to a spherically symmetric Lorentzian function (d sigma /d OMEGA ) varies directly as S/(k**2 plus q**2). The inverse correlation range, k, varies from 0. 006 to 0. 150 A** minus **1. Over a decade of reduced temperature k varies directly as t** nu with nu equals 0. 84 plus or minus 0. 05, which is greater than expected from simple theory (0. 64). Careful scans failed to detect any energy dependence in the fluctuations or anisotropy between the transverse and longitudinal components.
    Original languageEnglish
    JournalJournal de Physique (Paris)
    Volume40
    Issue number4
    Pages (from-to)28-30
    Publication statusPublished - 1979

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