Journal
PHYSICAL REVIEW B
Volume 82, Issue 7, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.82.075401
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Funding
- Flemish Science Foundation (FWO-Vl)
- Belgian Science Policy (IAP)
- National Science Foundation of China [10804053]
- Foundation of NUIST [S8108062001]
- Chinese Academy of Sciences
- Department of Science and Technology of Yunnan Province
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The effect of electron-impurity and electron-electron interactions on the energy spectrum of electrons moving in graphene is investigated in the presence of a high magnetic field. We find that the width of the broadened Landau levels exhibits an approximate 1/B dependence near half filling for charged impurity scattering. The Landau-level width, the density of states, and the Fermi energy exhibit an oscillatory behavior as a function of magnetic field. Comparison with experiment shows that scattering with charged impurities cannot be the main scattering mechanism that determines the width of the Landau levels.
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