Enhanced Shot Noise in Tunneling through a Stack of Coupled Quantum Dots

Details Enhanced Shot Noise in Tunneling through a Stack of Coupled Quantum Dots Enhanced Shot Noise in Tunneling through a Stack of Coupled Quantum Dots

2006-03-20

arxiv.org/abs/cond-mat/0603512v1

Phys. Rev. Lett. 96, 246804 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevLett.96.246804

We have investigated the noise properties of the tunneling current through
vertically coupled self-assembled InAs quantum dots. We observe
super-Poissonian shot noise at low temperatures. For increased temperature this
effect is suppressed. The super-Poissonian noise is explained by capacitive
coupling between different stacks of quantum dots.

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