Enhanced Shot Noise in Tunneling through a Stack of Coupled Quantum Dots
classification
❄️ cond-mat.mes-hall
keywords
noisedotsquantumcoupledshotsuper-poissoniantunnelingcapacitive
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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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