Observation of scaling behavior in a Coulomb blockade system

Details Observation of scaling behavior in a Coulomb blockade system Observation of scaling behavior in a Coulomb blockade system

1996-07-19

arxiv.org/abs/cond-mat/9607138v1

Physics

Condensed Matter

15 pages, LateX, with 6 figures embedded using epsf. To be published in Frontiers in Nanoscale Sciences of Micron/Submicron De

Scientific paper

We describe two experiments to study the influence of fluctuations in the electron charge on the transport properties of a quantum dot. First, we scan a device from single- to double quantum-dot behavior by varying the conductance of a connecting point contact. Second, we measure the dependence of the charging energy on the conductance of the barriers. The experiments are compared with traces obtained from a theory based on a Luttinger liquid type description. This theory predicts a scaling behaviour of the charging energy, in good agreement with our experiments.

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