Antiferromagnetic edge states in carbon nanotubes with hydrogen line defect abundancy

Kyu Won Lee, Cheol Eui Lee

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We have investigated the antiferromagnetic edge states in carbon nanotubes with hydrogen line defects by using the density functional theory calculations. As the hydrogen line defects increase, the exchange energy gain stabilizing the antiferromagnetic edge states increases in each graphenic ribbon produced by the line defects, indicating that the antiferromagnetic edge states can be realized at high temperatures regardless of the nanotube size. The exchange energy gain in each ribbon is determined by the ribbon width of the flat ribbon and apparently by the curvature of the curved ribbon. The exchange interaction between the ribbons is seen to be negligibly small even in the presence of a nonmagnetic inter-ribbon interaction that is sensitive to the ribbon width.

Original languageEnglish
Pages (from-to)163-168
Number of pages6
JournalCurrent Applied Physics
Issue number3
Publication statusPublished - 2015 Mar


  • Antiferromagnetic edge states
  • Density functional theory
  • Exchange energy
  • Hydrogenated carbon nanotubes

ASJC Scopus subject areas

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


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