• 文献标题:   Landau levels in graphene bilayer quantum dots
  • 文献类型:   Article
  • 作  者:   PEREIRA JM, PEETERS FM, VASILOPOULOS P, COSTA RN, FARIAS GA
  • 作者关键词:   doping, graphene, landau level, localised state, magnetic field, nanostructured material, quantum dot
  • 出版物名称:   PHYSICAL REVIEW B
  • ISSN:   1098-0121
  • 通讯作者地址:   Univ Fed Alagoas
  • 被引频次:   24
  • DOI:   10.1103/PhysRevB.79.195403
  • 出版年:   2009

▎ 摘  要

We investigate localized electron and hole states in parabolic quantum dots of biased graphene bilayers in the presence of a perpendicular magnetic field. These quantum dots can be created by means of nanostructured gates or by position-dependent doping, which can create a gap in the otherwise gapless dispersion of a graphene bilayer. Numerical results show the energy levels of confined electrons and holes as a function of the dot parameters and the magnetic field. Remarkable crossings of energy levels are found.