• 文献标题:   Revivals, classical periodicity, and zitterbewegung of electron currents in monolayer graphene
  • 文献类型:   Article
  • 作  者:   ROMERA E, DE LOS SANTOS F
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW B
  • ISSN:   1098-0121
  • 通讯作者地址:   Univ Granada
  • 被引频次:   47
  • DOI:   10.1103/PhysRevB.80.165416
  • 出版年:   2009

▎ 摘  要

Revivals of electric current in graphene in the presence of an external magnetic field are described. It is shown that when the electrons are prepared in the form of wave packets assuming a Gaussian population of only positive (or negative) energy Landau levels, the presence of the magnetic field induce revivals of the electron currents, besides the classical cyclotron motion. When the population comprises both positive and negative energy Landau levels, revivals of the electric current manifest simultaneously with zitterbewegung and the classical cyclotron motion. We relate the temporal scales of these three effects and discuss to what extent these results hold for real graphene samples.