• 文献标题:   Selective transmission of Dirac electrons and ballistic magnetoresistance of n-p junctions in graphene
  • 文献类型:   Article
  • 作  者:   CHEIANOV VV, FAL KO VI
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW B
  • ISSN:   1098-0121 EI 1550-235X
  • 通讯作者地址:   Univ Lancaster
  • 被引频次:   562
  • DOI:   10.1103/PhysRevB.74.041403
  • 出版年:   2006

▎ 摘  要

We show that an electrostatically created n-p junction separating the electron and hole gas regions in a graphene monolayer transmits only those quasiparticles that approach it almost perpendicularly to the n-p interface. Such a selective transmission of carriers by a single n-p junction would manifest itself in nonlocal magnetoresistance effect in arrays of such junctions and determines the unusual Fano factor in the current noise universal for the n-p junctions in graphene.