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

G. C. McIntosh; G. T. Kim; J. G. Park; V. Krstic; M. Burghard; S. H. Jhang; S. W. Lee; S. Roth; Y. W. Park

doi:10.1016/S0040-6090(02)00592-8

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

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

Research output: Contribution to journal › Conference article › peer-review

18 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 language	English
Pages (from-to)	67-71
Number of pages	5
Journal	Thin Solid Films
Volume	417
Issue number	1-2
DOIs	https://doi.org/10.1016/S0040-6090(02)00592-8
Publication status	Published - 2002 Sept 30
Event	Proceedings of the International Conference on Materials for - Singapore, Singapore Duration: 2001 Jul 1 → 2001 Jul 6

Keywords

Carbon nanotubes
Magneto-resistance

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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10.1016/S0040-6090(02)00592-8

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title = "Orientation dependence of magneto-resistance behaviour in a carbon nanotube rope",

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.",

keywords = "Carbon nanotubes, Magneto-resistance",

author = "McIntosh, {G. C.} and Kim, {G. T.} and Park, {J. G.} and V. Krstic and M. Burghard and Jhang, {S. H.} and Lee, {S. W.} and S. Roth and Park, {Y. W.}",

note = "Funding Information: This work was supported by the Ministry of Information and Communication (MIC), Korea. Partial support for GCM was provided by the BK21 project of the Ministry of Education (MOE), Korea.; Proceedings of the International Conference on Materials for ; Conference date: 01-07-2001 Through 06-07-2001",

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T1 - Orientation dependence of magneto-resistance behaviour in a carbon nanotube rope

AU - McIntosh, G. C.

AU - Kim, G. T.

AU - Park, J. G.

AU - Krstic, V.

AU - Burghard, M.

AU - Jhang, S. H.

AU - Lee, S. W.

AU - Roth, S.

AU - Park, Y. W.

N1 - Funding Information: This work was supported by the Ministry of Information and Communication (MIC), Korea. Partial support for GCM was provided by the BK21 project of the Ministry of Education (MOE), Korea.

PY - 2002/9/30

Y1 - 2002/9/30

N2 - 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.

AB - 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.

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KW - Magneto-resistance

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DO - 10.1016/S0040-6090(02)00592-8

M3 - Conference article

AN - SCOPUS:0037201324

SN - 0040-6090

VL - 417

SP - 67

EP - 71

JO - Thin Solid Films

JF - Thin Solid Films

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T2 - Proceedings of the International Conference on Materials for

Y2 - 1 July 2001 through 6 July 2001

ER -

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

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Keywords

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