Coupled Quantum Dots in a Graphene-Based Two-Dimensional Semimetal

被引：59

作者：

Moriyama, Satoshi ^{[1
]}

Tsuya, Daiju ^{[2
]}

Watanabe, Eilchiro ^{[2
]}

Uji, Shinya ^{[3
]}

Shimizu, Maki ^{[4
]}

Mori, Takahiro ^{[4
]}

Yamaguchi, Tomohiro ^{[4
]}

Ishibashi, Koji ^{[4
]}

机构：

[1] Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton, Tsukuba, Ibaraki 3050044, Japan

[2] Natl Inst Mat Sci, Nanotechnol Innovat Ctr, Tsukuba, Ibaraki 3050047, Japan

[3] Natl Inst Mat Sci, Adv Nano Mat Lab, Tsukuba, Ibaraki 3050003, Japan

[4] RIKEN, Adv Device Lab, Wako, Saitama 3510198, Japan

来源：

NANO LETTERS | 2009年 / 9卷 / 08期

关键词：

STOCHASTIC COULOMB-BLOCKADE; SPECTROSCOPY; LAYER;

D O I：

10.1021/nl9011535

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We present an experimental demonstration of a graphene-based double quantum dot system, which exhibits single-electron transport of two lateral quantum dots coupled in series. Low-temperature transport measurements revealed honeycomb charge stability diagrams with a varied (from weak to strong) interdot tunnel-coupling regime, and we have extracted the relevant parameters associated with the double quantum dot system. These results are important for the realization of integrated quantum circuits in graphene-based electronics.

引用

页码：2891 / 2896

页数：6

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