• 文献标题:   Landau-level broadening due to electron-impurity interaction in graphene in strong magnetic fields
  • 文献类型:   Article
  • 作  者:   YANG CH, PEETERS FM, XU W
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW B
  • ISSN:   1098-0121
  • 通讯作者地址:   Univ Antwerp
  • 被引频次:   29
  • DOI:   10.1103/PhysRevB.82.075401
  • 出版年:   2010

▎ 摘  要

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.