Spin polarized conductance in hybrid graphene nanoribbons using 5-7 defects

Andrés R. Botello-Méndez, Eduardo Cruz-Silva, Florentino Lóppez-Urias, Bobby G. Sumpter, Vincent Meunier, Mauricio Terrones Maldonado, Humberto Terrones

Research output: Contribution to journalArticle

51 Citations (Scopus)

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.

Original languageEnglish (US)
Pages (from-to)3606-3612
Number of pages7
JournalACS Nano
Volume3
Issue number11
DOIs
StatePublished - Nov 24 2009

Fingerprint

Nanoribbons
Carbon Nanotubes
Graphite
Graphene
graphene
Defects
defects
Electronic density of states
electronics
Electronic properties
Transport properties
Density functional theory
Heterojunctions
heterojunctions
Magnetic properties
Carbon
conductors
transport properties
magnetic properties
carbon

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Botello-Méndez, A. R., Cruz-Silva, E., Lóppez-Urias, F., Sumpter, B. G., Meunier, V., Terrones Maldonado, 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
Botello-Méndez, Andrés R. ; Cruz-Silva, Eduardo ; Lóppez-Urias, Florentino ; Sumpter, Bobby G. ; Meunier, Vincent ; Terrones Maldonado, Mauricio ; Terrones, Humberto. / Spin polarized conductance in hybrid graphene nanoribbons using 5-7 defects. In: ACS Nano. 2009 ; Vol. 3, No. 11. pp. 3606-3612.
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Botello-Méndez, AR, Cruz-Silva, E, Lóppez-Urias, F, Sumpter, BG, Meunier, V, Terrones Maldonado, M & Terrones, H 2009, 'Spin polarized conductance in hybrid graphene nanoribbons using 5-7 defects', ACS Nano, vol. 3, no. 11, pp. 3606-3612. https://doi.org/10.1021/nn900614x

Spin polarized conductance in hybrid graphene nanoribbons using 5-7 defects. / Botello-Méndez, Andrés R.; Cruz-Silva, Eduardo; Lóppez-Urias, Florentino; Sumpter, Bobby G.; Meunier, Vincent; Terrones Maldonado, Mauricio; Terrones, Humberto.

In: ACS Nano, Vol. 3, No. 11, 24.11.2009, p. 3606-3612.

Research output: Contribution to journalArticle

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AU - Botello-Méndez, Andrés R.

AU - Cruz-Silva, Eduardo

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AU - Sumpter, Bobby G.

AU - Meunier, Vincent

AU - Terrones Maldonado, Mauricio

AU - Terrones, Humberto

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AB - 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.

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Botello-Méndez AR, Cruz-Silva E, Lóppez-Urias F, Sumpter BG, Meunier V, Terrones Maldonado M et al. Spin polarized conductance in hybrid graphene nanoribbons using 5-7 defects. ACS Nano. 2009 Nov 24;3(11):3606-3612. https://doi.org/10.1021/nn900614x