Two Anderson Impurities in the Kondo Limit, Doublet States

J. Simonin

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Two Anderson Impurities in the Kondo Limit, Doublet States

J. Simonin

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Abstract

We analyze two pairs of doublet states for the two Anderson impurity problem. We found that for short interimpurity distances they have a lower energy than the ferro triplet and the antiferro singlet. For medium to long distances between the impurities, the doublets also have a lower energy than the two decoupled Kondo-singlet state for most of the range of interest. The mechanism behind their energy gain is an coherence enhanced Kondo-like interaction.

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J. Simonin. 2005-03-07. Two Anderson Impurities in the Kondo Limit, Doublet States. https://arxiv.org/abs/cond-mat/0503163

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