• 文献标题:   Magnetically induced waveguide in graphene
  • 文献类型:   Article
  • 作  者:   MYOUNG N, IHM G, LEE SJ
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW B
  • ISSN:   2469-9950 EI 2469-9969
  • 通讯作者地址:   Chungnam Natl Univ
  • 被引频次:   31
  • DOI:   10.1103/PhysRevB.83.113407
  • 出版年:   2011

▎ 摘  要

We show that the magnetically induced waveguide in graphene leads to strong confinement of Dirac fermions, regardless of its edge terminations. The proposed waveguide indeed acts as a ballistic conductor and produces well-localized current density and stepwise increasing conductance. Furthermore, when the waveguide is modulated by a magnetic barrier in a small region, its transport properties are dramatically changed. The conductance now exhibits characteristic oscillatory increases as a function of fermion energy. The results of the modified waveguide may provide the applications of graphene-based transport devices.