Experimental test of renormalization group theory on the uniaxial, dipolar coupled ferromagnet LiTbf4

Jens Aage Als-Nielsen

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    The transverse correlation range ξ and the susceptibility in the critical region has been measured by neutron scattering. A special technique required to resolve the superdiverging longitudinal correlation range has been utilized. The results for ξ together with existing specific-heat data are in remarkable agreement with the renormalization group theory of systems with marginal dimensionality. The ratio between the susceptibility amplitudes above and below Tc was found to be 2 in accordance with renormalization-group and meanfield theory.
    Original languageEnglish
    JournalPhysical Review Letters
    Volume37
    Issue number17
    Pages (from-to)1161-1164
    ISSN0031-9007
    DOIs
    Publication statusPublished - 1976

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