• 文献标题:   Directional photoelectric current across the bilayer graphene junction
  • 文献类型:   Article
  • 作  者:   SHAFRANJUK SE
  • 作者关键词:  
  • 出版物名称:   JOURNAL OF PHYSICSCONDENSED MATTER
  • ISSN:   0953-8984
  • 通讯作者地址:   Northwestern Univ
  • 被引频次:   8
  • DOI:   10.1088/0953-8984/21/1/015301
  • 出版年:   2009

▎ 摘  要

A directional photon-assisted resonant chiral tunneling through a bilayer graphene barrier is considered. An external electromagnetic field applied to the barrier switches the transparency T in the longitudinal direction from its steady state value T = 0 to the ideal T = 1 at no energy costs. The switch happens because the ac field affects the phase correlation between the electrons and holes inside the graphene barrier, changing the whole angular dependence of the chiral tunneling (directional photoelectric effect). The suggested phenomena can be implemented in relevant experiments and in various sub-millimeter and far-infrared optical electronic devices.