Shot Noise in Tunneling through a Quantum Dot Array

Details Shot Noise in Tunneling through a Quantum Dot Array Shot Noise in Tunneling through a Quantum Dot Array

2002-09-23

arxiv.org/abs/cond-mat/0209523v1

phys. status solidi (c) 0, 1293 (2003)

Physics

Condensed Matter

4 pages, 2 figures

Scientific paper

The shot noise suppression in a sample containing a layer of self-assembled InAs quantum dots has been investigated experimentally and theoretically. The observation of a non-monotonic dependence of the Fano factor on the bias voltage in a regime where only few quantum dot ground states contribute to the tunneling current is analyzed by a master equation model. Under the assumption of tunneling through states without Coulomb interaction this behaviour can be qualitatively reproduced by an analytical expression.

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