Kondo Quantum Dots and the Novel Kondo-doublet interaction

Details Kondo Quantum Dots and the Novel Kondo-doublet interaction Kondo Quantum Dots and the Novel Kondo-doublet interaction

2006-07-24

arxiv.org/abs/cond-mat/0607620v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figs, accepted for publication in PRL. title changed and text polished

Scientific paper

We analyze the interactions between two Kondo Quantum Dots connected to a Rashba-active Quantum Wire. We find that the Kondo-doublet interaction, at an inter-dot distance of the order of the wire Fermi length, is over an order of magnitude greater than the RKKY interaction. The effects induced on the Kondo-doublet interaction by the wire spin-orbit coupling can be used to control the Quantum Dots spin-spin correlation. These results imply that the widely used assumption that the RKKY is the dominant interaction between Anderson impurities must be revised.

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