Screening and interaction of magnetic impurities in Luttinger liquids |
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Authors: | Reinhold Egger |
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Affiliation: | 124. Fakult?t für Physik, Albert-Ludwigs-Universit?t, Hermann-Herder-Strasse 3, D-79104, Freiburg, Germany
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Abstract: | The spin and charge correlations induced in the conduction electron sea by the presence of a spin-1=2 magnetic impurity are investigated for one-dimensional electrons. For correlated conduction electrons, the RKKY interaction between magnetic impurities exhibits only a slow algebraic decay with distance. Increasing the exchange coupling between conduction 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 competition. Furthermore, the Kondo screening cloud and the local spin susceptibility far away from a magnetic impurity are discussed. |
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