Transport in Coupled Quantum Dots: Kondo Effect Versus Anti-Ferromagnetic Correlation
arXiv:cond-mat/9912019 · doi:10.1103/PhysRevB.62.9907
Abstract
The interplay between the Kondo effect and the inter-dot magnetic interaction in a coupled-dot system is studied. An exact result for the transport properties at zero temperature is obtained by diagonalizing a cluster, composed by the double-dot and its vicinity, which is connected to leads. It is shown that the system goes continuously from the Kondo regime to an anti-ferromagnetic state as the inter-dot interaction is increased. The conductance, the charge at the dots and the spin-spin correlation are obtained as a function of the gate potential.
4 pages, 3 postscript figures. Submitted to PRL
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Cited by in corpus (43)
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