Thirayatorn, R, Moontragoon, P, Amornkitbamrung, V et al. (2 more authors) (2015) Finite-difference calculation of the electronic structure of artificial graphene, the 2D hexagonal AlwGa1-wAs/GaAs structure with tunable interactions. Computer Physics Communications, 191. 106 - 118. ISSN 0010-4655
Abstract
The energy dispersion relation of two dimensional hexagonal lattice of GaAs quantum wires embedded in AlwGa1-wAs matrix, called artificial graphene, was calculated by the finite difference method with periodic boundary conditions. The validity of the finite difference based code was checked by comparing the bound state energies of various two dimensional systems with appropriate boundary conditions with analytic solutions or the results obtained by COMSOL software, which uses the finite element method, and a very good agreement was found. The energy dispersion relation calculated for artificial graphene structure shows massless Dirac particles, characteristic for real graphene. Therefore, artificial graphene-like structures have properties similar to those of real graphene, and are tailorable by appropriate structure engineering.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2015 Elsevier B.V. This is an author produced version of a paper published in Computer Physics Communications. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Artificial graphene; Massless Dirac particle; 2-dimensional energy dispersion relation; Band structure engineering |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Pollard Institute (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 15 Sep 2015 15:03 |
Last Modified: | 20 Jan 2018 23:15 |
Published Version: | http://dx.doi.org/10.1016/j.cpc.2015.02.005 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.cpc.2015.02.005 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:88011 |