Anomalous paramagnetism in doped carbon nanostructures

Julio A. Rodríguez-Manzo, Florentino López-Urías, Mauricio Terrones Maldonado, Humberto Terrones

Research output: Contribution to journalReview article

8 Citations (Scopus)

Abstract

A systematic study of the magnetic properties of corrugated and noncorrugated carbon nanotori doped with different ratios of extra electrons or holes to stimulate the effect of charge transfer using nonmagnetic elements, is presented. The corrugated systems were constructed by coalescing C60 molecules along the three axes of symmetry, and non-corrugated systems were constructed by joining and relaxing the two ends of open-ended carbon nanotubes. The difference between the highest occupied molecular orbital (HOMO) level and the lowest unoccupied molecular orbital (LUMO) was considered as the electronic gap. It was observed that the carbon systems with an electronic open shell can exhibit huge paramagnetic ring currents. Carbon tori exhibiting a half-filled HOMO level display the largest local ring currents.

Original languageEnglish (US)
Pages (from-to)120-125
Number of pages6
JournalSmall
Volume3
Issue number1
DOIs
StatePublished - Jan 2007

Fingerprint

Paramagnetism
Nanostructures
Molecular orbitals
Carbon
Carbon Nanotubes
Joining
Charge transfer
Carbon nanotubes
Magnetic properties
Electrons
Molecules

All Science Journal Classification (ASJC) codes

  • Biomaterials
  • Engineering (miscellaneous)
  • Biotechnology
  • Medicine(all)

Cite this

Rodríguez-Manzo, J. A., López-Urías, F., Terrones Maldonado, M., & Terrones, H. (2007). Anomalous paramagnetism in doped carbon nanostructures. Small, 3(1), 120-125. https://doi.org/10.1002/smll.200600406
Rodríguez-Manzo, Julio A. ; López-Urías, Florentino ; Terrones Maldonado, Mauricio ; Terrones, Humberto. / Anomalous paramagnetism in doped carbon nanostructures. In: Small. 2007 ; Vol. 3, No. 1. pp. 120-125.
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Rodríguez-Manzo, JA, López-Urías, F, Terrones Maldonado, M & Terrones, H 2007, 'Anomalous paramagnetism in doped carbon nanostructures', Small, vol. 3, no. 1, pp. 120-125. https://doi.org/10.1002/smll.200600406

Anomalous paramagnetism in doped carbon nanostructures. / Rodríguez-Manzo, Julio A.; López-Urías, Florentino; Terrones Maldonado, Mauricio; Terrones, Humberto.

In: Small, Vol. 3, No. 1, 01.2007, p. 120-125.

Research output: Contribution to journalReview article

TY - JOUR

T1 - Anomalous paramagnetism in doped carbon nanostructures

AU - Rodríguez-Manzo, Julio A.

AU - López-Urías, Florentino

AU - Terrones Maldonado, Mauricio

AU - Terrones, Humberto

PY - 2007/1

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AB - A systematic study of the magnetic properties of corrugated and noncorrugated carbon nanotori doped with different ratios of extra electrons or holes to stimulate the effect of charge transfer using nonmagnetic elements, is presented. The corrugated systems were constructed by coalescing C60 molecules along the three axes of symmetry, and non-corrugated systems were constructed by joining and relaxing the two ends of open-ended carbon nanotubes. The difference between the highest occupied molecular orbital (HOMO) level and the lowest unoccupied molecular orbital (LUMO) was considered as the electronic gap. It was observed that the carbon systems with an electronic open shell can exhibit huge paramagnetic ring currents. Carbon tori exhibiting a half-filled HOMO level display the largest local ring currents.

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