Coulomb drag of massless fermions in graphene

被引：166

作者：

Kim, Seyoung ^{[1
]}

Jo, Insun ^{[2
]}

Nah, Junghyo ^{[1
]}

Yao, Z. ^{[2
]}

Banerjee, S. K. ^{[1
]}

Tutuc, E. ^{[1
]}

机构：

[1] Univ Texas Austin, Microelect Res Ctr, Austin, TX 78758 USA

[2] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA

来源：

PHYSICAL REVIEW B | 2011年 / 83卷 / 16期

关键词：

2-DIMENSIONAL ELECTRON; FLUCTUATIONS; TRANSPORT; LAYERS; GAS;

D O I：

10.1103/PhysRevB.83.161401

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Using a structure consisting of two, independently contacted graphene single layers separated by an ultrathin dielectric, we experimentally measure the Coulomb drag of massless fermions in graphene. At temperatures higher than 50 K, the Coulomb drag follows a temperature and carrier density dependence consistent with the Fermi liquid regime. As the temperature is reduced, the Coulomb drag exhibits giant fluctuations with an increasing amplitude, thanks to the interplay between coherent transport in the graphene layer and interaction between the two layers.

引用

页数：4

共 24 条

[1] A self-consistent theory for graphene transport [J].

Adam, Shaffique ;

Hwang, E. H. ;

Galitski, V. M. ;

Das Sarma, S. .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2007, 104 (47) :18392-18397

[2]

Altshuler B. L., 1985, ELECT ELECT INTERACT

[3] Imaging coherent transport in graphene (part II): probing weak localization [J].

Berezovsky, Jesse ;

Westervelt, Robert M. .

NANOTECHNOLOGY, 2010, 21 (27)

[4] Anomalous Coulomb Drag in Electron-Hole Bilayers [J].

Croxall, A. F. ;

Gupta, K. Das ;

Nicoll, C. A. ;

Thangaraj, M. ;

Beere, H. E. ;

Farrer, I. ;

Ritchie, D. A. ;

Pepper, M. .

PHYSICAL REVIEW LETTERS, 2008, 101 (24)

[5] MUTUAL FRICTION BETWEEN PARALLEL 2-DIMENSIONAL ELECTRON-SYSTEMS [J].

GRAMILA, TJ ;

EISENSTEIN, JP ;

MACDONALD, AH ;

PFEIFFER, LN ;

WEST, KW .

PHYSICAL REVIEW LETTERS, 1991, 66 (09) :1216-1219

[6] Realization of a high mobility dual-gated graphene field-effect transistor with Al2O3 dielectric [J].

Kim, Seyoung ;

Nah, Junghyo ;

Jo, Insun ;

Shahrjerdi, Davood ;

Colombo, Luigi ;

Yao, Zhen ;

Tutuc, Emanuel ;

Banerjee, Sanjay K. .

APPLIED PHYSICS LETTERS, 2009, 94 (06)

[7] UNIVERSAL CONDUCTANCE FLUCTUATIONS IN METALS [J].

LEE, PA ;

STONE, AD .

PHYSICAL REVIEW LETTERS, 1985, 55 (15) :1622-1625

[8]

LOZOVIK YE, 1975, JETP LETT+, V22, P274

[9] 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

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

Min, Hongki ;

Bistritzer, Rafi ;

Su, Jung-Jung ;

MacDonald, A. H. .

PHYSICAL REVIEW B, 2008, 78 (12)

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