A triple quantum dot in a single-wall carbon nanotube

被引：58

作者：

Grove-Rasmussen, K. ^{[1
,2
]}

Jorgensen, H. I. ^{[2
]}

Hayashi, T. ^{[1
]}

Lindelof, P. E. ^{[2
]}

Fujisawa, T. ^{[1
]}

机构：

[1] NTT Corp, NTT Basic Res Lab, Kanagawa 2430198, Japan

[2] Univ Copenhagen, Niels Bohr Inst, Nanosci Ctr, DK-2100 Copenhagen, Denmark

来源：

NANO LETTERS | 2008年 / 8卷 / 04期

关键词：

D O I：

10.1021/nl072948y

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：1055 / 1060

页数：6

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