Tunable Coulomb blockade in nanostructured graphene

被引：194

作者：

Stampfer, C. ^{[1
]}

Guettinger, J. ^{[1
]}

Molitor, F. ^{[1
]}

Graf, D. ^{[1
]}

Ihn, T. ^{[1
]}

Ensslin, K. ^{[1
]}

机构：

[1] ETH, Solid State Phys Lab, CH-8093 Zurich, Switzerland

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 01期

关键词：

D O I：

10.1063/1.2827188

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on Coulomb blockade and Coulomb diamond measurements on an etched, tunable single-layer graphene quantum dot. The device consisting of a graphene island connected via two narrow graphene constrictions is fully tunable by three lateral graphene gates. Coulomb blockade resonances are observed and from Coulomb diamond measurements, a charging energy of approximate to 3.5 meV is extracted. For increasing temperatures, we detect a peak broadening and a transmission increase of the nanostructured graphene barriers. (c) 2008 American Institute of Physics.

引用

页数：3

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