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Appl. Sci. 2016, 6(9), 256; doi:10.3390/app6090256

Scattering of Dirac Electrons by Randomly Distributed Nitrogen Substitutional Impurities in Graphene

1
Department of Physics, University of Namur, Rue de Bruxelles 61, 5000 Namur, Belgium
2
Departamento de Física, Universidade Federal do Ceará, CP 6030, CEP 60455-900 Fortaleza-CE, Brazil
*
Author to whom correspondence should be addressed.
Academic Editor: Antonio Maffucci
Received: 20 July 2016 / Revised: 1 September 2016 / Accepted: 5 September 2016 / Published: 13 September 2016
(This article belongs to the Section Nanotechnology and Applied Nanosciences)
View Full-Text   |   Download PDF [663 KB, uploaded 13 September 2016]   |  

Abstract

The propagation of wave packets in a monolayer graphene containing a random distribution of dopant atoms has been explored. The time-dependent, two-dimensional Weyl-Dirac equation was solved numerically to propagate an initial Gaussian-type wave front and to investigate how the set of impurities influences its motion. It has been observed that the charge transport in doped graphene differs from the pristine case. In particular, nitrogen substitutional doping reduces the charge mobility in graphene due to backscattering effects. View Full-Text
Keywords: graphene; quantum transport; nitrogen dopant; wave-packet propagation; Dirac equation graphene; quantum transport; nitrogen dopant; wave-packet propagation; Dirac equation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Rakhimov, K.; Chaves, A.; Lambin, P. Scattering of Dirac Electrons by Randomly Distributed Nitrogen Substitutional Impurities in Graphene. Appl. Sci. 2016, 6, 256.

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