Structure and magnetic properties of adatoms on carbon nanotubes

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© 2004 American Physical Society (APS). This is the accepted version of the following article: Lehtinen, P. O. & Foster, A. S. & Ayuela, A. & Vehviläinen, T. T. & Nieminen, Risto M. 2004. Structure and magnetic properties of adatoms on carbon nanotubes. Physical Review B. Volume 69, Issue 15. 155422/1-5. ISSN 1550-235X (electronic). DOI: 10.1103/physrevb.69.155422, which has been published in final form at http://journals.aps.org/prb/abstract/10.1103/PhysRevB.69.155422.

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Journal Title

Journal ISSN

Volume Title

School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

2004

Major/Subject

Mcode

Degree programme

Language

en

Pages

155422/1-5

Series

Physical Review B, Volume 69, Issue 15

Abstract

We use ab initio methods to calculate the physical and electronic properties of carbon adatoms on different characteristic carbon nanotubes. We found that for every tube the energetically favored adsorption geometry is a “bridgelike” structure between two surface carbons, perpendicular to the long axis of the tube. For adsorption perpendicular or parallel to the axis, the calculations show that the adatom is spin polarized, although the magnitude of the magnetic moment depends mainly on the electronic structure of the nanotube itself.

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Keywords

carbon nanotubes, properties, magnetism

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Citation

Lehtinen, P. O. & Foster, A. S. & Ayuela, A. & Vehviläinen, T. T. & Nieminen, Risto M. 2004. Structure and magnetic properties of adatoms on carbon nanotubes. Physical Review B. Volume 69, Issue 15. 155422/1-5. ISSN 1550-235X (electronic). DOI: 10.1103/physrevb.69.155422.