journal6 ›› 2012, Vol. 33 ›› Issue (6): 33-36.DOI: 10.3969/j.issn.1007-2985.2012.06.009

• Physics and electrical engineering • Previous Articles     Next Articles

Strain Manipulation for Transport Properties for Armchair-Edge Graphene Nanoribbons——Under a Small Strain


  1. (College of Physics and Mechanical and Electrical Engineering,Jishou University,Jishou 416000,Hunan China)
  • Online:2012-11-25 Published:2013-01-14

Abstract: Electronic transmission coefficients and density of states for uniaxially small strained armchair-edge graphene nanoribbons (AGNRs) are demonstrated by the first-principle calculations based on nonequilibrium Green’s function method and density-functional-theorem.It is observed that the system density of states and transmission coefficients of semiconducting AGNRs are sensitive to the external uniaxially small strain,while the energy gaps of metallic AGNRs may be opened under a small strain.

Key words: armchair-edge graphene nanoribbons, uniaxial strain, first-principles calculation, electron density of states, transmission coefficients

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