Orientation dependence of magneto-resistance behaviour in a carbon nanotube rope

G. C. McIntosh, Gyu-Tae Kim, J. G. Park, V. Krstic, M. Burghard, S. H. Jhang, S. W. Lee, S. Roth, Y. W. Park

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The orientation dependence of magneto-resistance behaviour for a single-walled carbon nanotube (SWCN) rope is reported. A clear delineation of behaviours is observed between applying a magnetic field perpendicular or parallel to the rope axis. For a perpendicular field, monotonic negative magneto-resistance is observed due to two-dimensional weak localisation within the rope. By contrast, for a parallel field, complicated oscillatory behaviour is observed due to the Altshuler-Aronov-Spivak effect around closed electron trajectories on discrete cylinders within the SWCN rope. A dominant oscillatory mode can be identified which corresponds to closed paths around the outer circumference of the SWCN rope. However, due to the composite filamentary nature of the rope, the overall oscillatory behaviour is rather complicated and can be classified as universal conductance fluctuations. With a backgate voltage applied to the sample, Coulomb blockade peaks are observed in the transport current with additional peak structure superimposed due to resonant tunnelling. We find an interesting effect whereby these peaks are suppressed in the presence of a magnetic field.

Original languageEnglish
Pages (from-to)67-71
Number of pages5
JournalThin Solid Films
Volume417
Issue number1-2
DOIs
Publication statusPublished - 2002 Sep 30

Fingerprint

Carbon Nanotubes
Magnetoresistance
Carbon nanotubes
carbon nanotubes
Single-walled carbon nanotubes (SWCN)
electron trajectories
delineation
circumferences
resonant tunneling
magnetic fields
Magnetic fields
Coulomb blockade
Resonant tunneling
composite materials
electric potential
Trajectories
Electrons
Composite materials
Electric potential

Keywords

  • Carbon nanotubes
  • Magneto-resistance

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Condensed Matter Physics
  • Surfaces and Interfaces

Cite this

McIntosh, G. C., Kim, G-T., Park, J. G., Krstic, V., Burghard, M., Jhang, S. H., ... Park, Y. W. (2002). Orientation dependence of magneto-resistance behaviour in a carbon nanotube rope. Thin Solid Films, 417(1-2), 67-71. https://doi.org/10.1016/S0040-6090(02)00592-8

Orientation dependence of magneto-resistance behaviour in a carbon nanotube rope. / McIntosh, G. C.; Kim, Gyu-Tae; Park, J. G.; Krstic, V.; Burghard, M.; Jhang, S. H.; Lee, S. W.; Roth, S.; Park, Y. W.

In: Thin Solid Films, Vol. 417, No. 1-2, 30.09.2002, p. 67-71.

Research output: Contribution to journalArticle

McIntosh, GC, Kim, G-T, Park, JG, Krstic, V, Burghard, M, Jhang, SH, Lee, SW, Roth, S & Park, YW 2002, 'Orientation dependence of magneto-resistance behaviour in a carbon nanotube rope', Thin Solid Films, vol. 417, no. 1-2, pp. 67-71. https://doi.org/10.1016/S0040-6090(02)00592-8
McIntosh, G. C. ; Kim, Gyu-Tae ; Park, J. G. ; Krstic, V. ; Burghard, M. ; Jhang, S. H. ; Lee, S. W. ; Roth, S. ; Park, Y. W. / Orientation dependence of magneto-resistance behaviour in a carbon nanotube rope. In: Thin Solid Films. 2002 ; Vol. 417, No. 1-2. pp. 67-71.
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