Spin Polarized Conductance in Hybrid Graphene Nanoribbons Using 5−7 Defects

Botello Mendez, Andrés Rafael;Cruz-Silva, Eduardo;López-Urías, Florentino;Sumpter, Bobby G.;Terrones, Humberto;et.al.
(2009) ACS Nano — Vol. 3, n° 11, p. 3606-3612 (2009)

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Authors
  • Botello Mendez, Andrés RafaelUCLouvain
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  • Cruz-Silva, Eduardo
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  • López-Urías, Florentino
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  • Sumpter, Bobby G.
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  • Terrones, Humberto
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Abstract
We present a class of intramolecular graphene heterojunctions and use first-principles density functional calculations to describe their electronic, magnetic, and transport properties. The hybrid graphene and hybrid graphene nanoribbons have both armchair and zigzag features that are separated by an interface made up of pentagonal and heptagonal carbon rings. Contrary to conventional graphene sheets, the computed electronic density of states indicates that all hybrid graphene and nanoribbon systems are metallic. Hybrid nanoribbons are found to exhibit a remarkable width-dependent magnetic behavior and behave as spin polarized conductors.
Affiliations
  • Instituto Potosino de Investigación Científica y TecnológicaAdvanced Materials Department

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Botello Mendez, A. R., Cruz-Silva, E., López-Urías, F., Sumpter, B. G., Meunier, V., Terrones, M., & Terrones, H. (2009). Spin Polarized Conductance in Hybrid Graphene Nanoribbons Using 5−7 Defects. ACS Nano, 3(11), 3606-3612. https://doi.org/10.1021/nn900614x (Original work published 2009)