From One Electron to One Hole: Quasiparticle Counting in Graphene Quantum Dots Determined by Electrochemical and Plasma Etching

被引：92

作者：

Neubeck, Soeren ^{[1
]}

Ponomarenko, Leonid A. ^{[1
]}

Freitag, Frank ^{[1
]}

Giesbers, A. J. M. ^{[2
]}

Zeitler, Ulrich ^{[2
]}

Morozov, Sergey V. ^{[3
]}

Blake, Peter ^{[4
]}

Geim, Andre K. ^{[4
]}

Novoselov, Kostya S. ^{[1
]}

机构：

[1] Univ Manchester, Sch Phys & Astron, Manchester M13 9PL, Lancs, England

[2] Mat Radboud Univ Nijmegen, High Field Magnet Lab, Inst Mol, NL-6525 ED Nijmegen, Netherlands

[3] Inst Microelect Technol, Chernogolovka 142432, Russia

[4] Univ Manchester, Ctr Mesosci & Nanotechnol, Manchester M13 9PL, Lancs, England

来源：

SMALL | 2010年 / 6卷 / 14期

基金：

英国工程与自然科学研究理事会; 欧洲研究理事会;

关键词：

AFM lithography; graphene; quantum dots; quasiparticle energy spectra; GRAPHITE;

D O I：

10.1002/smll.201000291

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Quantum dots of around 20 nm in size are fabricated using local anodic oxidation. The behavior of the smallest dots in a magnetic field (see image) allows the identification of the charge-neutrality point and distinguishing of the states with one electron, no charge, and one hole left inside the quantum dot.

引用

页码：1469 / 1473

页数：5

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