  The genesis of the Curie-Weiss magnetic response observed in most transition
metals that are Fermi liquids at low temperatures has been an enigma for
decades and has not yet been fully explained from microscopic principles. We
show on the single-impurity Anderson model how the quantum dynamics of strong
electron correlations leads to the Curie-Weiss magnetic susceptibility
sufficiently above the Kondo temperature. Such behavior has not yet been
demonstrated and can be observed only when the bare interaction is
substantially screened (renormalized) and a balance between quantum and thermal
fluctuations is kept. We set quantitative criteria for the existence of the
Curie-Weiss law.
