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    Rights statement: ©2011 American Physical Society

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Intra-Landau-level magnetoexcitons and the transition between quantum Hall states in undoped bilayer graphene

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Intra-Landau-level magnetoexcitons and the transition between quantum Hall states in undoped bilayer graphene. / Toke, Csaba; Falko, Vladimir.
In: Physical review B, Vol. 83, No. 11, 115455, 29.03.2011.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Toke, C & Falko, V 2011, 'Intra-Landau-level magnetoexcitons and the transition between quantum Hall states in undoped bilayer graphene', Physical review B, vol. 83, no. 11, 115455. https://doi.org/10.1103/PhysRevB.83.115455

APA

Toke, C., & Falko, V. (2011). Intra-Landau-level magnetoexcitons and the transition between quantum Hall states in undoped bilayer graphene. Physical review B, 83(11), Article 115455. https://doi.org/10.1103/PhysRevB.83.115455

Vancouver

Toke C, Falko V. Intra-Landau-level magnetoexcitons and the transition between quantum Hall states in undoped bilayer graphene. Physical review B. 2011 Mar 29;83(11):115455. doi: 10.1103/PhysRevB.83.115455

Author

Toke, Csaba ; Falko, Vladimir. / Intra-Landau-level magnetoexcitons and the transition between quantum Hall states in undoped bilayer graphene. In: Physical review B. 2011 ; Vol. 83, No. 11.

Bibtex

@article{e0d3d8bd963c4b7f889ec0760ef44497,
title = "Intra-Landau-level magnetoexcitons and the transition between quantum Hall states in undoped bilayer graphene",
abstract = "We study the collective modes of the quantum Hall states in undoped bilayer graphene in a strong perpendicular magnetic and electric field. Both for the well-known ferromagnetic state that is relevant for small electric field E-perpendicular to and the analogous layer polarized one suitable for large E-perpendicular to, the low-energy physics is dominated by magnetoexcitons with zero angular momentum that are even combinations of excitons that conserve Landau orbitals. We identify a long-wavelength instability in both states, and argue that there is an intermediate range of the electric field E-c((1)) < E-perpendicular to < E-c((s)) where a gapless phase interpolates between the incompressible quantum Hall states. The experimental relevance of this crossover via a gapless state is discussed.",
author = "Csaba Toke and Vladimir Falko",
note = "{\textcopyright}2011 American Physical Society",
year = "2011",
month = mar,
day = "29",
doi = "10.1103/PhysRevB.83.115455",
language = "English",
volume = "83",
journal = "Physical review B",
issn = "1098-0121",
publisher = "AMER PHYSICAL SOC",
number = "11",

}

RIS

TY - JOUR

T1 - Intra-Landau-level magnetoexcitons and the transition between quantum Hall states in undoped bilayer graphene

AU - Toke, Csaba

AU - Falko, Vladimir

N1 - ©2011 American Physical Society

PY - 2011/3/29

Y1 - 2011/3/29

N2 - We study the collective modes of the quantum Hall states in undoped bilayer graphene in a strong perpendicular magnetic and electric field. Both for the well-known ferromagnetic state that is relevant for small electric field E-perpendicular to and the analogous layer polarized one suitable for large E-perpendicular to, the low-energy physics is dominated by magnetoexcitons with zero angular momentum that are even combinations of excitons that conserve Landau orbitals. We identify a long-wavelength instability in both states, and argue that there is an intermediate range of the electric field E-c((1)) < E-perpendicular to < E-c((s)) where a gapless phase interpolates between the incompressible quantum Hall states. The experimental relevance of this crossover via a gapless state is discussed.

AB - We study the collective modes of the quantum Hall states in undoped bilayer graphene in a strong perpendicular magnetic and electric field. Both for the well-known ferromagnetic state that is relevant for small electric field E-perpendicular to and the analogous layer polarized one suitable for large E-perpendicular to, the low-energy physics is dominated by magnetoexcitons with zero angular momentum that are even combinations of excitons that conserve Landau orbitals. We identify a long-wavelength instability in both states, and argue that there is an intermediate range of the electric field E-c((1)) < E-perpendicular to < E-c((s)) where a gapless phase interpolates between the incompressible quantum Hall states. The experimental relevance of this crossover via a gapless state is discussed.

U2 - 10.1103/PhysRevB.83.115455

DO - 10.1103/PhysRevB.83.115455

M3 - Journal article

VL - 83

JO - Physical review B

JF - Physical review B

SN - 1098-0121

IS - 11

M1 - 115455

ER -