• 文献标题:   Range and correlation effects in edge disordered graphene nanoribbons
  • 文献类型:   Article
  • 作  者:   CRESTI A, ROCHE S
  • 作者关键词:  
  • 出版物名称:   NEW JOURNAL OF PHYSICS
  • ISSN:   1367-2630
  • 通讯作者地址:   CEA
  • 被引频次:   49
  • DOI:   10.1088/1367-2630/11/9/095004
  • 出版年:   2009

▎ 摘  要

In this paper, we investigate the impact of edge disorder on the transport properties of graphene nanoribbons with zigzag and armchair symmetries. The diffusive and localization conduction regimes are analysed by performing a mesoscopic study on long disordered ribbons and by extracting elastic mean free paths and localization lengths. At fixed defect density and depending on specific edge disorder profile and ribbon symmetry, we observe strong transport fluctuations resulting in large mobility gaps or robust quasiballistic transport. These features are shown to be connected with the topology of edge irregularities as well as their correlation degree. Zigzag nanoribbons are also shown to be more robust than armchairs for similar disorder parameters.