Modeling of Inter-ribbon Tunneling in Graphene

By Maarten Van de Put1; William Gerard Hubert Vandenberghe2; Massimo V Fischetti2

1. Department of Physics, Universiteit Antwerpen, Antwerpen, Belgium 2. Materials Science and Engineering, University of Texas at Dallas, Richardson, TX

Published on

Abstract

IWCE presentation. Recently, resonant tunneling has been observed in stacked graphene flakes[1]. The rotational misalignment introduces an offset between the Dirac-cones in both flakes, resulting in negative differential resistance when shifting the Dirac-cones under bias.

In this paper we investigate the finite-size effect in nano-scaled graphene flakes. Improving on the bulk description, and because the structures are – atomistically speaking – large in size, we use the empirical pseudopotential method[2].

Original title: "Overlaps in Stacked Graphene Flakes Using Empirical Pseudopotentials"

Sponsored by

References

  1. A Mishchenko, JS Tu, Y Cao, RV Gorbachev, JRWallbank, MT Greenaway, VE Morozov, SV Morozov, MJ Zhu, SL Wong, et al. Twist-controlled resonant tunnelling in graphene/boron nitride/graphene heterostructures. Nature nanotechnology, 9(10):808–813, 2014.
  2. Massimo V Fischetti and Sudarshan Narayanan. An empirical pseudopotential approach to surface and line-edge roughness scattering in nanostructures: Application to si thin films and nanowires and to graphene nanoribbons, Journal of Applied Physics, 110(8):083713, 2011.

Cite this work

Researchers should cite this work as follows:

  • Maarten L Van de Put, William G Vandenberghe, W Magnus, B Soree, MV Fischetti, Modeling of inter-ribbon tunneling in graphene, 2015 International Workshop on Computational Electronics (IWCE), 2015.

  • Maarten Van de Put, William Gerard Hubert Vandenberghe, Massimo V Fischetti (2016), "Modeling of Inter-ribbon Tunneling in Graphene," https://nanohub.org/resources/25276.

    BibTex | EndNote

Time

Location

North Ballroom, PMU, Purdue University, West Lafayette, IN

Tags