Doping and the unique role of vacancies in promoting the magnetic ground state in carbon nanotubes and C60 polymers

نویسندگان

  • Antonis N. Andriotis
  • R. Michael Sheetz
  • Madhu Menon
چکیده

The role of various types of defects in establishing the magnetic properties of the C60-based polymers and the single-wall carbon nanotubes is investigated. Comparing the role of carbon vacancies, and that of substitutional impurity atoms X X=N, B, O, Si, P, and S in establishing a magnetic ground state it is found that the impurity X atoms promote the spin density delocalization, whereas its localization appears as one of the primary effects of the carbon vacancies.

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تاریخ انتشار 2006