A triple quantum dot in a single-wall carbon nanotube

Kasper Grove-Rasmussen; Henrik Ingerslev Jørgensen; T. Hayashi; Poul Erik Lindelof; T. Fujisawa

doi:10.1021/nl072948y

A triple quantum dot in a single-wall carbon nanotube

Kasper Grove-Rasmussen, Henrik Ingerslev Jørgensen, T. Hayashi, Poul Erik Lindelof, T. Fujisawa

Condensed Matter Physics

54 Citations (Scopus)

Abstract

A top-gated single-wall carbon nanotube is used to define three coupled quantum dots in series between two electrodes. The additional electron number on each quantum dot is controlled by top-gate voltages allowing for current measurements of single, double, and triple quantum dot stability diagrams. Simulations using a capacitor model including tunnel coupling between neighboring dots captures the observed behavior with good agreement. Furthermore, anticrossings between indirectly coupled levels and higher order cotunneling are discussed.
Udgivelsesdato: April

Original language	English
Journal	Nano Letters
Volume	8
Issue number	4
Pages (from-to)	1055-1060
ISSN	1530-6984
DOIs	https://doi.org/10.1021/nl072948y
Publication status	Published - 2008

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10.1021/nl072948y

Cite this

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title = "A triple quantum dot in a single-wall carbon nanotube",

abstract = "A top-gated single-wall carbon nanotube is used to define three coupled quantum dots in series between two electrodes. The additional electron number on each quantum dot is controlled by top-gate voltages allowing for current measurements of single, double, and triple quantum dot stability diagrams. Simulations using a capacitor model including tunnel coupling between neighboring dots captures the observed behavior with good agreement. Furthermore, anticrossings between indirectly coupled levels and higher order cotunneling are discussed. Udgivelsesdato: April",

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AU - Grove-Rasmussen, Kasper

AU - Jørgensen, Henrik Ingerslev

AU - Hayashi, T.

AU - Lindelof, Poul Erik

AU - Fujisawa, T.

PY - 2008

Y1 - 2008

N2 - A top-gated single-wall carbon nanotube is used to define three coupled quantum dots in series between two electrodes. The additional electron number on each quantum dot is controlled by top-gate voltages allowing for current measurements of single, double, and triple quantum dot stability diagrams. Simulations using a capacitor model including tunnel coupling between neighboring dots captures the observed behavior with good agreement. Furthermore, anticrossings between indirectly coupled levels and higher order cotunneling are discussed. Udgivelsesdato: April

AB - A top-gated single-wall carbon nanotube is used to define three coupled quantum dots in series between two electrodes. The additional electron number on each quantum dot is controlled by top-gate voltages allowing for current measurements of single, double, and triple quantum dot stability diagrams. Simulations using a capacitor model including tunnel coupling between neighboring dots captures the observed behavior with good agreement. Furthermore, anticrossings between indirectly coupled levels and higher order cotunneling are discussed. Udgivelsesdato: April

U2 - 10.1021/nl072948y

DO - 10.1021/nl072948y

M3 - Journal article

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SN - 1530-6984

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