Magnetic response in finite carbon graphene sheets and nanotubes

F. López-Urías, J. A. Rodríguez-Manzo, E. Muñoz-Sandoval, Mauricio Terrones Maldonado, H. Terrones

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The electronic and magnetic properties of graphene sheets with armchair and zig-zag edges are investigated using the Hückel tight binding model in conjunction with the London approximation. It is observed that in the presence of a perpendicular external magnetic field, the nanographenes show a diamagnetic behavior exhibiting counter-clockwise ring currents. Topological defects such as vacancies, Stone-Wale transformations (bond rotations) and holes are introduced in the graphene sheets in order to enhance local paramagnetic ring currents. These ring currents produce a local magnetic moment perpendicular to the defective site. In addition, current flows in finite carbon nanotubes are investigated.

Original languageEnglish (US)
Pages (from-to)110-115
Number of pages6
JournalOptical Materials
Volume29
Issue number1
DOIs
StatePublished - Oct 1 2006

Fingerprint

Graphite
ring currents
Graphene
Nanotubes
nanotubes
graphene
Carbon
Carbon Nanotubes
carbon
Magnetic moments
Electronic properties
Vacancies
Carbon nanotubes
Magnetic properties
Magnetic fields
Defects
counters
magnetic moments
carbon nanotubes
rocks

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Computer Science(all)
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

López-Urías, F., Rodríguez-Manzo, J. A., Muñoz-Sandoval, E., Terrones Maldonado, M., & Terrones, H. (2006). Magnetic response in finite carbon graphene sheets and nanotubes. Optical Materials, 29(1), 110-115. https://doi.org/10.1016/j.optmat.2006.03.025
López-Urías, F. ; Rodríguez-Manzo, J. A. ; Muñoz-Sandoval, E. ; Terrones Maldonado, Mauricio ; Terrones, H. / Magnetic response in finite carbon graphene sheets and nanotubes. In: Optical Materials. 2006 ; Vol. 29, No. 1. pp. 110-115.
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López-Urías, F, Rodríguez-Manzo, JA, Muñoz-Sandoval, E, Terrones Maldonado, M & Terrones, H 2006, 'Magnetic response in finite carbon graphene sheets and nanotubes', Optical Materials, vol. 29, no. 1, pp. 110-115. https://doi.org/10.1016/j.optmat.2006.03.025

Magnetic response in finite carbon graphene sheets and nanotubes. / López-Urías, F.; Rodríguez-Manzo, J. A.; Muñoz-Sandoval, E.; Terrones Maldonado, Mauricio; Terrones, H.

In: Optical Materials, Vol. 29, No. 1, 01.10.2006, p. 110-115.

Research output: Contribution to journalArticle

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López-Urías F, Rodríguez-Manzo JA, Muñoz-Sandoval E, Terrones Maldonado M, Terrones H. Magnetic response in finite carbon graphene sheets and nanotubes. Optical Materials. 2006 Oct 1;29(1):110-115. https://doi.org/10.1016/j.optmat.2006.03.025