Transport properties of graphene nanoroads in boron nitride sheets

Jeil Jung, Zhenhua Qiao, Qian Niu, Allan H. MacDonald

Research output: Contribution to journalArticlepeer-review

85 Scopus citations

Abstract

We demonstrate that the one-dimensional (1D) transport channels that appear in the gap when graphene nanoroads are embedded in boron nitride (BN) sheets are more robust when they are inserted at AB/BA grain boundaries. Our conclusions are based on ab initio electronic structure calculations for a variety of different crystal orientations and bonding arrangements at the BN/C interfaces. This property is related to the valley Hall conductivity present in the BN band structure and to the topologically protected kink states that appear in continuum Dirac models with position-dependent masses.

Original languageEnglish
Pages (from-to)2936-2940
Number of pages5
JournalNano Letters
Volume12
Issue number6
DOIs
StatePublished - 13 Jun 2012

Keywords

  • 1D conducting state
  • ballistic transport
  • graphene ribbon
  • h-boron nitride
  • kink state

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