Electroconductance in single-wall carbon nanotubes

Jaiswal, Manu and Sangeeth, CS Suchand and Menon, Reghu (2009) Electroconductance in single-wall carbon nanotubes. In: Applied Physics Letters, 95 (3). 032111-1-032111-3.

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Abstract

A comparative study of the electric-field induced hopping transport probes the effective dimensionality (D) in bulk and ultrathin films of single-wall carbon nanotubes (SWNTs). The values of the scaling function exponents for the electroconductance are found to be consistent with that in three-dimensional and two-dimensional systems. The significant difference in threshold voltage in these two types of SWNTs is a consequence of the variation in the number of energetically favorable sites available for charge carriers to hop by using the energy from the field. Furthermore, a modification to the magnetotransport is observed under high electric-fields.

Item Type:	Journal Article
Publication:	Applied Physics Letters
Publisher:	American Institute of Physics
Additional Information:	Copyright of this article belongs to American Institute of Physics.
Keywords:	carbon nanotubes;galvanomagnetic effects;hopping conduction; thin films.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	26 Aug 2009 04:41
Last Modified:	19 Sep 2010 05:41
URI:	http://eprints.iisc.ac.in/id/eprint/22285

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