Quantum Hall activation gaps in bilayer graphene

E. V. Kurganova; A. J M Giesbers; R. V. Gorbachev; A. K. Geim; K. S. Novoselov; J. C. Maan; U. Zeitler

doi:10.1016/j.ssc.2010.09.042

Quantum Hall activation gaps in bilayer graphene

E. V. Kurganova, A. J M Giesbers, R. V. Gorbachev, A. K. Geim, K. S. Novoselov, J. C. Maan, U. Zeitler

Research output: Contribution to journal › Article › peer-review

Abstract

We have measured the quantum Hall activation gaps in bilayer graphene at filling factors ν=±4 and ν=±8 in high magnetic fields up to 30 T. We find that energy levels can be described by a 4-band relativistic hyperbolic dispersion. The Landau level width is found to contain a field independent background due to an intrinsic level broadening and a component which increases linearly with magnetic field. © 2010 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	2209-2211
Number of pages	2
Journal	Solid State Communications
Volume	150
Issue number	45-46
DOIs	https://doi.org/10.1016/j.ssc.2010.09.042
Publication status	Published - Dec 2010

Keywords

A. Bilayer graphene
D. Landau levels
D. Quantum Hall effect

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10.1016/j.ssc.2010.09.042

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title = "Quantum Hall activation gaps in bilayer graphene",

abstract = "We have measured the quantum Hall activation gaps in bilayer graphene at filling factors ν=±4 and ν=±8 in high magnetic fields up to 30 T. We find that energy levels can be described by a 4-band relativistic hyperbolic dispersion. The Landau level width is found to contain a field independent background due to an intrinsic level broadening and a component which increases linearly with magnetic field. {\textcopyright} 2010 Elsevier B.V. All rights reserved.",

keywords = "A. Bilayer graphene, D. Landau levels, D. Quantum Hall effect",

author = "Kurganova, {E. V.} and Giesbers, {A. J M} and Gorbachev, {R. V.} and Geim, {A. K.} and Novoselov, {K. S.} and Maan, {J. C.} and U. Zeitler",

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year = "2010",

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doi = "10.1016/j.ssc.2010.09.042",

language = "English",

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journal = "Solid State Communications",

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TY - JOUR

T1 - Quantum Hall activation gaps in bilayer graphene

AU - Kurganova, E. V.

AU - Giesbers, A. J M

AU - Gorbachev, R. V.

AU - Geim, A. K.

AU - Novoselov, K. S.

AU - Maan, J. C.

AU - Zeitler, U.

N1 - Times Cited: 1

PY - 2010/12

Y1 - 2010/12

N2 - We have measured the quantum Hall activation gaps in bilayer graphene at filling factors ν=±4 and ν=±8 in high magnetic fields up to 30 T. We find that energy levels can be described by a 4-band relativistic hyperbolic dispersion. The Landau level width is found to contain a field independent background due to an intrinsic level broadening and a component which increases linearly with magnetic field. © 2010 Elsevier B.V. All rights reserved.

AB - We have measured the quantum Hall activation gaps in bilayer graphene at filling factors ν=±4 and ν=±8 in high magnetic fields up to 30 T. We find that energy levels can be described by a 4-band relativistic hyperbolic dispersion. The Landau level width is found to contain a field independent background due to an intrinsic level broadening and a component which increases linearly with magnetic field. © 2010 Elsevier B.V. All rights reserved.

KW - A. Bilayer graphene

KW - D. Landau levels

KW - D. Quantum Hall effect

U2 - 10.1016/j.ssc.2010.09.042

DO - 10.1016/j.ssc.2010.09.042

M3 - Article

SN - 0038-1098

VL - 150

SP - 2209

EP - 2211

JO - Solid State Communications

JF - Solid State Communications

IS - 45-46

ER -

Quantum Hall activation gaps in bilayer graphene

Abstract

Keywords

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