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, Humberto Terrones

Research output: Contribution to journalArticlepeer-review

52 Scopus citations

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

All Science Journal Classification (ASJC) codes

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

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