J. Physique Lett. 38, 87-89 (1977)
DOI: 10.1051/jphyslet:0197700380308700

Preasymptotic charge oscillations around 3d impurities in aluminium

V. Zlatic et G. Grüner

Institute of Physics, University of Zagreb, Zagreb, Yugoslavia

Abstract
The charge density oscillations in Al 3d alloys are discussed and the observed values, which are strongly reduced with respect to the values predicted by Friedel's expression, are explained using the localised spin fluctuation approximation of the Anderson model. Temperature dependence of Δρ is discussed as well.

Résumé
L'objet de cet article est de calculer dans le modèle d'Anderson la perturbation de densité électronique autour de certaines impuretés 3d dans l'aluminium. L'atténuation de l'amplitude des oscillations de Friedel au voisinage de l'impureté est discutée dans le modèle des fluctuations de spins localisés. La dépendance en température de Δρ(r) est aussi considérée.

PACS
7155D - Impurity and defect levels in metals, semimetals, and alloys.
7215Q - Scattering mechanisms and Kondo effect metals/alloys.
7520H - Local moment in dilute alloys: Kondo effect, valence fluctuations, heavy fermions.

Key words
aluminium alloys -- Anderson model -- dilute alloys -- impurity electron states -- Kondo effect -- transition metal alloys -- 3d impurities -- charge density oscillations -- localised spin fluctuation approximation -- Anderson model -- Al -- many body Kondo state -- preasymptotic charge oscillations -- conduction electron charge density -- temperature dependence