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

[11] Electronic transport and quantum hall effect in bipolar graphene p-n-p junctions [J].

Oezyilmaz, Barbaros ;

Jarillo-Herrero, Pablo ;

Efetov, Dmitri ;

Abanin, Dmitry A. ;

Levitov, Leonid S. ;

Kim, Philip .

PHYSICAL REVIEW LETTERS, 2007, 99 (16)

[12] Gate-induced insulating state in bilayer graphene devices [J].

Oostinga, Jeroen B. ;

Heersche, Hubert B. ;

Liu, Xinglan ;

Morpurgo, Alberto F. ;

Vandersypen, Lieven M. K. .

NATURE MATERIALS, 2008, 7 (02) :151-157

[13] Raman spectra of misoriented bilayer graphene [J].

Poncharal, P. ;

Ayari, A. ;

Michel, T. ;

Sauvajol, J. -L. .

PHYSICAL REVIEW B, 2008, 78 (11)

[14] Quantum hall effect in a gate-controlled p-n junction of graphene [J].

Williams, J. R. ;

DiCarlo, L. ;

Marcus, C. M. .

SCIENCE, 2007, 317 (5838) :638-641

[15] Experimental observation of the quantum Hall effect and Berry's phase in graphene [J].

Zhang, YB ;

Tan, YW ;

Stormer, HL ;

Kim, P .

NATURE, 2005, 438 (7065) :201-204

← 1 2 →