Coherent transport through graphene nanoribbons in the presence of edge disorder

We simulate electron transport through graphene nanoribbons of experimentally realizable size (length L up to 2 μm and width W ≈ 40 nm) in the presence of scattering at rough edges. Our numerical approach is based on a modular recursive Green's function technique that features sub-linear scaling of the computational effort with L. We investigate backscattering at edge defects: Fourier spectroscopy of individual scattering states allows us to disentangle inter-valley and intra-valley scattering. We observe Anderson localization with a well-defined exponential decay over ten orders of magnitude in amplitude. We determine the corresponding localization length for different strengths and shapes of edge roughness.

• Publication year

  2011

• Venue

  New Journal of Physics

• Publication date

  2011-04-27

• Fields of study

  Physics

• Identifiers
  DOI 10.1088/1367-2630/14/12/123006arXiv 1104.5260
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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