Coulomb oscillations in three-layer graphene nanostructures

被引：22

作者：

Guettinger, J. ^{[1
]}

Stampfer, C. ^{[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：

NEW JOURNAL OF PHYSICS | 2008年 / 10卷

基金：

瑞士国家科学基金会;

关键词：

D O I：

10.1088/1367-2630/10/12/125029

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present transport measurements on a tunable three-layer graphene single electron transistor (SET). The device consists of an etched three-layer graphene flake with two narrow constrictions separating the island from source and drain contacts. Three lateral graphene gates are used to electrostatically tune the device. An individual three-layer graphene constriction has been investigated separately showing a transport gap near the charge neutrality point. The graphene tunneling barriers show a strongly nonmonotonic coupling as a function of gate voltage indicating the presence of localized states in the constrictions. We show Coulomb oscillations and Coulomb diamond measurements proving the functionality of the graphene SET. A charging energy of approximate to 0.6 meV is extracted.

引用

页数：10

共 28 条

[1] Spin-orbit interaction in carbon nanotubes [J].

Ando, T .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2000, 69 (06) :1757-1763

[2] Berry's phase and absence of back scattering in carbon nanotubes [J].

Ando, T ;

Nakanishi, T ;

Saito, R .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1998, 67 (08) :2857-2862

[3] Carbon-based electronics [J].

Avouris, Phaedon ;

Chen, Zhihong ;

Perebeinos, Vasili .

NATURE NANOTECHNOLOGY, 2007, 2 (10) :605-615

[4] Challenges for semiconductor spintronics [J].

Awschalom, David D. ;

Flatte, Michael E. .

NATURE PHYSICS, 2007, 3 (03) :153-159

[5] Coulomb oscillations and Hall effect in quasi-2D graphite quantum dots [J].

Bunch, JS ;

Yaish, Y ;

Brink, M ;

Bolotin, K ;

McEuen, PL .

NANO LETTERS, 2005, 5 (02) :287-290

[6] Graphene nano-ribbon electronics [J].

Chen, Zhihong ;

Lin, Yu-Ming ;

Rooks, Michael J. ;

Avouris, Phaedon .

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2007, 40 (02) :228-232

[7]

Elzerman JM, 2004, NATURE, V430, P431, DOI 10.1039/nature02693

[8] Raman spectrum of graphene and graphene layers [J].

Ferrari, A. C. ;

Meyer, J. C. ;

Scardaci, V. ;

Casiraghi, C. ;

Lazzeri, M. ;

Mauri, F. ;

Piscanec, S. ;

Jiang, D. ;

Novoselov, K. S. ;

Roth, S. ;

Geim, A. K. .

PHYSICAL REVIEW LETTERS, 2006, 97 (18)

[9] Non-Gaussian distribution of nearest-neighbour Coulomb peak spacings in metallic single-electron transistors [J].

Furlan, M ;

Heinzel, T ;

Jeanneret, B ;

Lotkhov, SV ;

Ensslin, K .

EUROPHYSICS LETTERS, 2000, 49 (03) :369-375

[10] The rise of graphene [J].

Geim, A. K. ;

Novoselov, K. S. .

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

← 1 2 3 →