4.6 Article

Grain boundaries with octagonal defects in graphene nanoribbons and nanotubes

Journal

PHYSICAL REVIEW B
Volume 87, Issue 16, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.87.165427

Keywords

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Funding

  1. Polish National Science Center [DEC-2011/03/B/ST3/00091]
  2. Basque Departamento de Educacion and the UPV/EHU [IT-366-07]
  3. Spanish Ministerio de Innovacion, Ciencia y Tecnologia [TEC2007-68065-C03-03, FIS2010-19609-C02-02]
  4. ETORTEK research program (NANO-IKER) [IE11-304]
  5. Basque Departamento de Industria
  6. Diputacion Foral de Guipuzcoa

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We study graphene nanoribbons and carbon nanotubes containing ordered defect lines built of octagonal rings. We show that octagonal defect lines are a robust source of state localization at the Fermi energy, in some cases leading to spontaneous magnetization. We also prove that the localization at chains of octagons is a consequence of the zigzag nature of the graphene edges forming the defect lines. DOI: 10.1103/PhysRevB.87.165427

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