TITLE

Metallic–nonmetallic transition on the conductivity temperature dependence of multiwall carbon nanotubes

AUTHOR(S)
Yong Sun; Miyasato, Tatsuro; Kirimoto, Kenta; Kusunoki, Michiko
PUB. DATE
May 2005
SOURCE
Applied Physics Letters;5/30/2005, Vol. 86 Issue 22, p223108
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We applied a noncontacting surface acoustic wave technique to measure the conductivity of aligned multiwall carbon nanotube films. By changing intensities of the parallel and perpendicular electric field components at the surface of the film sample, we observed different temperature dependencies of the conductivity. It was found that the temperature dependence of the conductivity parallel to the tube axis is comparable to that of a single-wall carbon nanotube, namely, there is a metallic–nonmetallic transition at temperature of 280 K. On the other hand, the temperature dependence of the conductivity perpendicular to the tube axis is similar to that of a graphene sheet.
ACCESSION #
17249947

 

Related Articles

  • Absolute negative conductivity in zig-zag carbon nanotubes in the presence of a magnetic field. Belonenko, M.; Lebedev, N.; Yanyushkina, N. // Russian Physics Journal;Apr2012, Vol. 54 Issue 11, p1185 

    The volt-ampere and gauss-ampere characteristics of zig-zag carbon nanotubes are calculated at low temperatures based on the average electron method. The characteristics obtained are analyzed as functions of the magnetic field strength. It is revealed that a constant electric field can arise...

  • Electron doping of small-diameter carbon nanotubes with exohedral fullerenes. Pradhan, Basudev; Kohlmeyer, Ryan R.; Setyowati, Kristina; Jian Chen // Applied Physics Letters;12/1/2008, Vol. 93 Issue 22, p223102 

    The interaction between carbon nanotubes (CNTs) and exohedral fullerenes, which represent two types of carbon allotropes with extraordinary properties, has received little attention so far. The effect of exohedral fullerenes on CNTs’ electronic properties is essentially unknown. We report...

  • Self-heating of metallic carbon nanotube bundles in the regime of the Luttinger-liquid conductivity. Danilchenko, B. A.; Tripachko, N. A.; Voytsihovska, E. A.; Obukhov, I. A.; Yaskovets, I. I.; Sundqvist, B. // Low Temperature Physics;Aug2011, Vol. 37 Issue 8, p710 

    The conductivity of bundles of carbon single-walled nanotubes with metallic conductivity (metallic nanotubes) is investigated over the wide temperature range 4.2-330 K and electrical fields up to 50 V. The usage of short electrical pulses of the duration of 10 ns allowed to avoid an influence of...

  • Optimization of the parameters of a carbon nanotube-based field-emission cathode. Bocharov, G.; Eletskii, A.; Sommerer, T. // Technical Physics;Apr2011, Vol. 56 Issue 4, p540 

    procedure for optimizing a field-emission cathode based on carbon nanotubes (CNTs) is developed. An array of identical equidistant vertical CNTs is considered. The optimization procedure takes into account the effect of screening of an electric field by neighboring nanotubes by solving a Laplace...

  • Exclusive-OR gate using a two-input single-electron transistor in single-wall carbon nanotubes. Tsuya, D.; Suzuki, M.; Aoyagi, Y.; Ishibashi, K. // Applied Physics Letters;10/10/2005, Vol. 87 Issue 15, p153101 

    We demonstrated a two-input exclusive-OR (XOR) gate using a single-electron transistor with two similar side gates in single-wall carbon nanotubes. Coulomb peaks were adjusted to have a half phase difference by a high input voltage to one of the two gates. The output current was in a low level...

  • Effect of heating rates on superconducting properties of pure MgB2, carbon nanotube- and nano-SiC-doped in situ MgB2/Fe wires. Chen, S. K.; Tan, K. S.; Glowacki, B. A.; Yeoh, W. K.; Soltanian, S.; Horvat, J.; Dou, S. X. // Applied Physics Letters;10/31/2005, Vol. 87 Issue 18, p182504 

    The influence of heating rates and annealing temperatures on the transition temperatures (Tc) and critical current densities (Jc) of pure MgB2, carbon nanotube- and nano-SiC-doped in situ monofilamentary MgB2/Fe wires was investigated. It was found that higher Jc was obtained for pure MgB2...

  • Material witness: Flat out C60. Ball, Philip // Nature Materials;Jun2006, Vol. 5 Issue 6, p434 

    The article presents a discussion of graphene. It states that fullerenes with 60 atoms of carbon (C60) are useful materials that tend to be extended in at least one dimension. It explains that graphene is the master substance of most nanotubes including (C60). Graphene is a semi-metal with a...

  • The Prospective 2D Graphene Nanosheets: Preparation, Functionalization and Applications. Zhi Yang; Rungang Gao; Nantao Hu; Jing Chai; Yingwu Cheng; Liying Zhang; Hao Wei; Eric Siu-Wai Kong; Yafei Zhang // Nano-Micro Letters;2011, Vol. 3 Issue 4, p272 

    Graphene, as intermediate phase in fullerene and carbon nanotube, has aroused much interestdue to its exceptional electronic, mechanical, and thermal properties. With excellent electrical conductivity ashigh as 6000 S/cm, which is independent on chirality, graphene is a promising material for...

  • 1/f noise in metallic and semiconducting carbon nanotubes. Reza, Shahed; Huynh, Quyen T.; Bosman, Gijs; Sippel-Oakley, Jennifer; Rinzler, Andrew G. // Journal of Applied Physics;11/1/2006, Vol. 100 Issue 9, p094318 

    The charge transport and noise properties of three terminal, gated devices containing multiple single-wall metallic and semiconducting carbon nanotubes were measured at room temperature. Applying a high voltage pulsed bias at the drain terminal the metallic tubes were ablated sequentially,...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics