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The conduction of a single-wall carbon nanotube depends on the pitch. If there are an integral number of carbon hexagons per pitch, then the system is periodic along the tube axis and allows "holes" (, and not "electrons",) to move inside…

Mesoscale and Nanoscale Physics · Physics 2010-03-30 S. Fujita , S. Moon , Y. Takato , James McNabb , S. Godoy

Multiwalled carbon nanotubes are shown to be ballistic conductors at room temperature, with mean free paths of the order of tens of microns. These experiments follow and extend the original experiments by Frank et al (Science, 280 1744…

Materials Science · Physics 2007-05-23 Philippe Poncharal , Claire Berger , Yan Yi , Z. L. Wang , Walt A. de Heer

We report on electrical resistance measurements of an individual carbon nanotube down to a temperature T=20 mK. The conductance exhibits a ln T dependence and saturates at low temperature. A magnetic field applied perpendicular to the tube…

The thermal conductivity, k(T), of bulk single-wall carbon nanotubes (SWNT's) displays a linear temperature dependence at low T that has been attributed to 1D quantization of phonons. To explore this issue further, we have measured the k(T)…

Materials Science · Physics 2016-08-31 M. C. Llaguno , J. Hone , A. T. Johnson , J. E. Fischer

Deformations of single-wall carbon nanotubes are investigated within the tight-binding model with deformation-dependent hopping energies. We show that the nanotubes tend to twist and shrink spontaneously at zero temperature. The explicit…

Mesoscale and Nanoscale Physics · Physics 2017-07-05 Vít Jakubský , Axel Pérez-Obiol

We study the dependence of thermal conductivity of single walled nanotubes (SWNT) on chirality, isotope impurity, tube length and temperature by nonequilibrium molecular dynamics method with accurate potentials. It is found that, contrary…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Gang Zhang , Baowen Li

Semiconducting single-walled carbon nanotubes are studied in the diffusive transport regime. The peak mobility is found to scale with the square of the nanotube diameter and inversely with temperature. The maximum conductance, corrected for…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Xinjian Zhou , Ji-Yong Park , Shaoming Huang , Jie Liu , Paul L. McEuen

This paper examines the effect of temperature on the structural stability and mechanical properties of 20 layered (10,10) single walled carbon nanotubes (SWCNTs) under tensile loading using an O(N) tight binding molecular dynamics (TBMD)…

Materials Science · Physics 2009-11-13 G. Dereli , B. Sungu

The temperature-dependent transverse mechanical properties of single-walled nanotubes are studied using a molecular mechanics approach. The stretching and bond angle force constants describing the mechanical behaviour of the sp^{2} bonds…

Atomic and Molecular Clusters · Physics 2015-05-19 Fabrizio Scarpa , Luca Boldrin , Hua-Xin Peng , Chrystel Remillat , Sondipon Adhikari

We study the dependence of thermal conductivity of single walled nanotubes (SWNT) on chirality and isotope impurity by nonequilibrium molecular dynamics method with accurate potentials. It is found that, contrary to electronic conductivity,…

Materials Science · Physics 2007-05-23 Zhang Gang , Baowen Li

The thermal conductivity and thermoelectric power of a single carbon nanotube were measured using a microfabricated suspended device. The observed thermal conductivity is more than 3000 W/K m at room temperature, which is two orders of…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 P. Kim , L. Shi , A. Majumdar , P. L. McEuen

Single-wall carbon nanotubes are almost ideal systems for the investigation of exotic many-body effects due to non-Fermi liquid behavior of interacting electrons in one dimension. Recent theoretical and experimental results are reviewed…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 A. Odintsov , H. Yoshioka

We discuss magnetotransport measurements on individual single-wall carbon nanotubes with low contact resistance, performed as a function of temperature and gate voltage. We find that the application of a magnetic field perpendicular to the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 H. T. Man , A. F. Morpurgo

We have evaluated the energies required to twist carbon nanotubes (NTs), and investigated the effects of these distortions on their electronic structure and electrical properties. The computed distortion energies are high, indicating that…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Alain Rochefort , Phaedon Avouris

Strain rate and temperature dependence of the tensile strength of single-walled carbon nanotubes has been investigated with molecular dynamics simulations. The tensile failure or yield strain is found to be strongly dependent on the…

Condensed Matter · Physics 2009-11-07 Chenyu Wei , Kyeongjae Cho , Deepak Srivastava

Using Monte Carlo simulations, we investigate the possibility of an orientational melting transition within a "rope" of (10,10) carbon nanotubes. When twisting nanotubes bundle up during the synthesis, orientational dislocations or twistons…

Materials Science · Physics 2009-10-31 Young-Kyun Kwon , David Tomanek

The dependence of the interwall conductance on distance between walls and relative positions of walls are calculated at the low voltage by Bardeen method for (n,n)@(2n,2n) double-walled carbon nanotubes (DWCNTs) with n = 5, 6, ..., 10. The…

Mesoscale and Nanoscale Physics · Physics 2010-04-26 N. A. Poklonski , Nguyen Ngoc Hieu , E. F. Kislyakov , S. A. Vyrko , A. I. Siahlo , A. M. Popov , Yu. E. Lozovik

We measure the conductivity spectra of thin films comprising bundled single-walled carbon nanotubes (CNTs) of different average lengths in the frequency range 0.3-1000 THz and temperature interval 10-530 K. The observed temperature-induced…

The thermal properties of a suspended metallic single-wall carbon nanotube (SWNT) are extracted from its high-bias (I-V) electrical characteristics over the 300-800 K temperature range, achieved by Joule self-heating. The thermal…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 Eric Pop , David Mann , Qian Wang , Kenneth Goodson , Hongjie Dai

Temperature dependence of electrical resistance of single-walled carbon nanotube (SWCNTs)/epoxy nanocomposites, which is characterized by a temperature coefficient of resistance (TCR), is experimentally investigated. In the existing…

Applied Physics · Physics 2025-03-19 Milad Jafarypouria , Sergey Abaimov
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