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Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2004

Full Counting Statistics of a charge shuttle

Résumé

We study the charge transfer in a small grain oscillating between two leads. Coulomb blockade restricts the charge fluctuations in such a way that only zero or one additional electrons can sit on the grain. The system thus acts as a charge shuttle. We obtain the full counting statistics of charge transfer and discuss its behavior. For large oscillation amplitude the probability of transferring $\tilde n$ electrons per cycle is strongly peaked around one. The peak is asymmetric since its form is controlled by different parameters for $\tilde n>1$ and $\tilde n < 1$. Under certain conditions the systems behaves as if the effective charge is 1/2 of the elementary one. Knowledge of the counting statistics gives a new insight on the mechanism of charge transfer.

Dates et versions

hal-00133108 , version 1 (23-02-2007)

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F. Pistolesi. Full Counting Statistics of a charge shuttle. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2004, 69, pp.245409. ⟨hal-00133108⟩

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