• 文献标题:   One-dimensional plasmons confined in bilayer graphene p-n junctions
  • 文献类型:   Article
  • 作  者:   HASSAN NM, MKHITARYAN VV, MISHCHENKO EG
  • 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:   Univ Utah
  • 被引频次:   4
  • DOI:   10.1103/PhysRevB.85.125411
  • 出版年:   2012

▎ 摘  要

Gapless spectrum of graphene allows easy spatial separation of electrons and holes with an external in-plane electric field. Guided collective plasmon modes can propagate along the separation line, with the amplitude decaying with the distance to it. Their spectrum and direction of propagation can be controlled with the strength and direction of in-plane electric field. In the case of a bilayer graphene additional control is possible by the perpendicular electric field that opens a gap in the band spectrum of electrons. We investigate guided plasmon spectra in bilayer p-n junctions using hydrodynamics of charged electron liquid.