• 文献标题:   Quantum conductance of armchair graphene nanopores with edge impurities
  • 文献类型:   Article
  • 作  者:   QIU WZ, SKAFIDAS E
  • 作者关键词:  
  • 出版物名称:   JOURNAL OF APPLIED PHYSICS
  • ISSN:   0148-6055 EI 1520-8516
  • 通讯作者地址:   Univ Melbourne
  • 被引频次:   6
  • DOI:   10.1063/1.4816335
  • 出版年:   2013

▎ 摘  要

The quantum conductance of armchair graphene nanopores (aGNPs) with edge impurities is investigated using the tight-binding model and non-equilibrium Green's function method. We find that aGNPs are particularly interesting since their transmission spectra can be easily tuned by pore-edge shaping to produce a variety of electronic transport characteristics. We first examine the local density of states at individual impurity sites. We then study the quantum conductance of aGNPs with various transmission spectra in response to perturbations to on-site energies and hopping coefficients of edge atoms. Insights into transport properties of aGNPs are provided and implications of these findings for designing aGNP devices in interconnection and sensing applications are discussed. (C) 2013 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.