SCREENING AND INTERACTION OF MAGNETIC-IMPURITIES IN LUTTINGER LIQUIDS

The spin and charge correlations induced in the conduction electron se a by the presence of a spin-1/2 magnetic impurity are investigated for one-dimensional electrons. For correlated conduction electrons, the R KKY interaction between magnetic impurities exhibits only a slow algeb raic decay with distance. Increasing the exchange coupling between con duction electrons and magnetic impurity leads to a competition between the RKKY interaction and the Kondo effect. For a two-impurity model, we study the influence of the electronic correlations on this competit ion. Furthermore, the Kondo screening cloud and the local spin suscept ibility far away from a magnetic impurity are discussed.