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Density of states and zero Landau level probed through capacitance of graphene

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Density of states and zero Landau level probed through capacitance of graphene. / Ponomarenko, L. A.; Yang, R.; Gorbachev, R. V. et al.
In: Physical review letters, Vol. 105, No. 13, 136801, 21.09.2010.

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

Harvard

Ponomarenko, LA, Yang, R, Gorbachev, RV, Blake, P, Mayorov, AS, Novoselov, KS, Katsnelson, MI & Geim, AK 2010, 'Density of states and zero Landau level probed through capacitance of graphene', Physical review letters, vol. 105, no. 13, 136801. https://doi.org/10.1103/PhysRevLett.105.136801

APA

Ponomarenko, L. A., Yang, R., Gorbachev, R. V., Blake, P., Mayorov, A. S., Novoselov, K. S., Katsnelson, M. I., & Geim, A. K. (2010). Density of states and zero Landau level probed through capacitance of graphene. Physical review letters, 105(13), Article 136801. https://doi.org/10.1103/PhysRevLett.105.136801

Vancouver

Ponomarenko LA, Yang R, Gorbachev RV, Blake P, Mayorov AS, Novoselov KS et al. Density of states and zero Landau level probed through capacitance of graphene. Physical review letters. 2010 Sept 21;105(13):136801. doi: 10.1103/PhysRevLett.105.136801

Author

Ponomarenko, L. A. ; Yang, R. ; Gorbachev, R. V. et al. / Density of states and zero Landau level probed through capacitance of graphene. In: Physical review letters. 2010 ; Vol. 105, No. 13.

Bibtex

@article{776c78f0b5774a73995140e93108cd63,
title = "Density of states and zero Landau level probed through capacitance of graphene",
abstract = "We report capacitors in which a finite electronic compressibility of graphene dominates the electrostatics, resulting in pronounced changes in capacitance as a function of magnetic field and carrier concentration. The capacitance measurements have allowed us to accurately map the density of states D, and compare it against theoretical predictions. Landau oscillations in D are robust and zero Landau level (LL) can easily be seen at room temperature in moderate fields. The broadening of LLs is strongly affected by charge inhomogeneity that leads to zero LL being broader than other levels.",
author = "Ponomarenko, {L. A.} and R. Yang and Gorbachev, {R. V.} and P. Blake and Mayorov, {A. S.} and Novoselov, {K. S.} and Katsnelson, {M. I.} and Geim, {A. K.}",
note = "{\textcopyright} 2010 The American Physical Society",
year = "2010",
month = sep,
day = "21",
doi = "10.1103/PhysRevLett.105.136801",
language = "English",
volume = "105",
journal = "Physical review letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "13",

}

RIS

TY - JOUR

T1 - Density of states and zero Landau level probed through capacitance of graphene

AU - Ponomarenko, L. A.

AU - Yang, R.

AU - Gorbachev, R. V.

AU - Blake, P.

AU - Mayorov, A. S.

AU - Novoselov, K. S.

AU - Katsnelson, M. I.

AU - Geim, A. K.

N1 - © 2010 The American Physical Society

PY - 2010/9/21

Y1 - 2010/9/21

N2 - We report capacitors in which a finite electronic compressibility of graphene dominates the electrostatics, resulting in pronounced changes in capacitance as a function of magnetic field and carrier concentration. The capacitance measurements have allowed us to accurately map the density of states D, and compare it against theoretical predictions. Landau oscillations in D are robust and zero Landau level (LL) can easily be seen at room temperature in moderate fields. The broadening of LLs is strongly affected by charge inhomogeneity that leads to zero LL being broader than other levels.

AB - We report capacitors in which a finite electronic compressibility of graphene dominates the electrostatics, resulting in pronounced changes in capacitance as a function of magnetic field and carrier concentration. The capacitance measurements have allowed us to accurately map the density of states D, and compare it against theoretical predictions. Landau oscillations in D are robust and zero Landau level (LL) can easily be seen at room temperature in moderate fields. The broadening of LLs is strongly affected by charge inhomogeneity that leads to zero LL being broader than other levels.

UR - http://www.scopus.com/inward/record.url?scp=77957107491&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.105.136801

DO - 10.1103/PhysRevLett.105.136801

M3 - Journal article

VL - 105

JO - Physical review letters

JF - Physical review letters

SN - 0031-9007

IS - 13

M1 - 136801

ER -