Mechanism for the non-Fermi-liquid behavior in CeCu6-xAux

A. Rosch, A. Schröder, O. Stockert, H. von Lohneysen

    Research output: Contribution to journalJournal articleResearch

    Abstract

    We propose an explanation for the recently observed non-Fermi-liquid behavior of metallic alloys CeCu6-xAux: Near x = 0.1, the specific heat C is proportional to T ln(T-0/T), and the resistivity increases linearly with temperature T over a wide range of T. These features follow from a model in which three-dimensional conduction electrons are coupled to two-dimensional critical ferromagnetic fluctuations near the quantum critical point x(c) = 0.1. This picture is motivated by the neutron scattering data in the ordered phase (x = 0.2) and is consistent with the observed phase diagram.
    Original languageEnglish
    JournalPhysical Review Letters
    Volume79
    Issue number1
    Pages (from-to)159-162
    ISSN0031-9007
    DOIs
    Publication statusPublished - 1997

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