Kondo Screening Cloud and Charge Quantization in Mesoscopic Devices

Details Kondo Screening Cloud and Charge Quantization in Mesoscopic Devices Kondo Screening Cloud and Charge Quantization in Mesoscopic Devices

2006-12-26

arxiv.org/abs/cond-mat/0612635v3

Physics

Condensed Matter

Strongly Correlated Electrons

An extended version of this paper is now available at: 0801.4166. An analysis of bulk Luttinger liquid interactions has been a

Scientific paper

We propose that the finite size of the Kondo screening cloud, xi_K, can be probed by measuring the charge quantization in a one-dimensional system coupled to a small quantum dot. When the chemical potential in the system is varied at zero temperature, one should observe charge steps that are controlled by the Kondo effect when the system size L is comparable to xi_K. We show that, if the standard Kondo model is used, the ratio between the widths of the Coulomb blockade valleys with odd or even number of electrons is a universal scaling function of xi_K/L.

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