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

McIntosh GC, Kim G, Park Jg, Krstic V, Burghard M, Jhang SH, Lee S, Roth S, Park Y (2002)

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2002

Journal

Thin Solid Films Elsevier

Book Volume: 417

Pages Range: 67-71

Event location: Singapore

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

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.

Authors with CRIS profile

Vojislav Krstic Professur für Angewandte Physik

Involved external institutions

Max-Planck-Institut für Festkörperforschung DE Germany (DE) Seoul National University (SNU) / 서울대학교 KR Korea, Republic of (KR) Korea University KR Korea, Republic of (KR)

How to cite

APA:

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

MLA:

McIntosh, Gregory C., et al. "Orientation dependence of magneto-resistance behaviour in a carbon nanotube rope." Thin Solid Films 417 (2002): 67-71.

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