Barthold P, Hohls F, Maire N, Pierz K, Haug RJ. Enhanced shot noise in tunneling through a stack of coupled quantum dots.
PHYSICAL REVIEW LETTERS 2006;
96:246804. [PMID:
16907268 DOI:
10.1103/physrevlett.96.246804]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2006] [Indexed: 05/11/2023]
Abstract
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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