Tunable graphene system with two decoupled monolayers

被引：97

作者：

Schmidt, H. ^{[1
]}

Luedtke, T. ^{[1
]}

Barthold, P. ^{[1
]}

McCann, E. ^{[2
]}

Fal'ko, V. I. ^{[2
]}

Haug, R. J. ^{[1
]}

机构：

[1] Leibniz Univ Hannover, Inst Festkorperphys, Appelstr 2, D-30167 Hannover, Germany

[2] Univ Lancaster, Dept Phys, Lancaster LA1 4YB, England

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 17期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1063/1.3012369

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The use of two truly two-dimensional gapless semiconductors, monolayer and bilayer graphene, as current-carrying components in field-effect transistors (FETs) gives access to special types of nanoelectronic devices. Here, we report on the development of graphene-based FETs containing two decoupled graphene monolayers manufactured from a single one folded during the exfoliation process. The transport characteristics of these devices differ markedly from those manufactured from a single-crystal bilayer. By analyzing Shubnikov-de Haas oscillations, we demonstrate the possibility to independently control the carrier densities in both layers using top and bottom gates, despite there being only a nanometer scale separation between them. (C) 2008 American Institute of Physics. [DOI: 10.1063/1.3012369]

引用

页数：3

共 15 条

[1] Visibility of graphene flakes on a dielectric substrate [J].

Abergel, D. S. L. ;

Russell, A. ;

Fal'ko, Vladimir I. .

APPLIED PHYSICS LETTERS, 2007, 91 (06)

[2] Selective transmission of Dirac electrons and ballistic magnetoresistance of n-p junctions in graphene [J].

Cheianov, Vadim V. ;

Fal'ko, Vladimir I. .

PHYSICAL REVIEW B, 2006, 74 (04)

[3] The rise of graphene [J].

Geim, A. K. ;

Novoselov, K. S. .

NATURE MATERIALS, 2007, 6 (03) :183-191

[4] Why multilayer graphene on 4H-SiC(000(1)over-bar) behaves like a single sheet of graphene [J].

Hass, J. ;

Varchon, F. ;

Millan-Otoya, J. E. ;

Sprinkle, M. ;

Sharma, N. ;

De Heer, W. A. ;

Berger, C. ;

First, P. N. ;

Magaud, L. ;

Conrad, E. H. .

PHYSICAL REVIEW LETTERS, 2008, 100 (12)

[5] Landau-level degeneracy and quantum hall effect in a graphite bilayer [J].

McCann, E ;

Fal'ko, VI .

PHYSICAL REVIEW LETTERS, 2006, 96 (08) :1-4

[6] Room-temperature superfluidity in graphene bilayers [J].

Min, Hongki ;

Bistritzer, Rafi ;

Su, Jung-Jung ;

MacDonald, A. H. .

PHYSICAL REVIEW B, 2008, 78 (12)

[7] Fine structure constant defines visual transparency of graphene [J].

Nair, R. R. ;

Blake, P. ;

Grigorenko, A. N. ;

Novoselov, K. S. ;

Booth, T. J. ;

Stauber, T. ;

Peres, N. M. R. ;

Geim, A. K. .

SCIENCE, 2008, 320 (5881) :1308-1308

[8] Two-dimensional gas of massless Dirac fermions in graphene [J].

Novoselov, KS ;

Geim, AK ;

Morozov, SV ;

Jiang, D ;

Katsnelson, MI ;

Grigorieva, IV ;

Dubonos, SV ;

Firsov, AA .

NATURE, 2005, 438 (7065) :197-200

[9] Unconventional quantum Hall effect and Berry's phase of 2π in bilayer graphene [J].

Novoselov, KS ;

McCann, E ;

Morozov, SV ;

Fal'ko, VI ;

Katsnelson, MI ;

Zeitler, U ;

Jiang, D ;

Schedin, F ;

Geim, AK .

NATURE PHYSICS, 2006, 2 (03) :177-180

[10] Electric field effect in atomically thin carbon films [J].

Novoselov, KS ;

Geim, AK ;

Morozov, SV ;

Jiang, D ;

Zhang, Y ;

Dubonos, SV ;

Grigorieva, IV ;

Firsov, AA .

SCIENCE, 2004, 306 (5696) :666-669

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