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Related papers: Multiple radial corrugations in multiwalled carbon…

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We investigate the electronic instabilities in carbon nanotubes (CNs), looking for the break-down of the one dimensional Luttinger liquid regime due to the strong screening of the long-range part of the Coulomb repulsion. We show that such…

Superconductivity · Physics 2009-11-13 S. Bellucci , M. Cini , P. Onorato , E. Perfetto

In this study, using non-equilibrium molecular dynamics simulation, the flow of water in deformed carbon nanotubes is studied for two water models TIP4P/2005 and SPC/FH. The results demonstrated a non-uniform dependence of the flow on the…

We study the behaviour of the non-retarded van der Waals force between a planar substrate and a single-walled carbon nanotube, assuming that the system is immersed in a liquid medium which exerts hydrostatic pressure on the tube's surface,…

Mesoscale and Nanoscale Physics · Physics 2020-08-26 Galin Valchev , Peter Djondjorov , Vassil Vassilev , Daniel Dantchev

Extensive molecular dynamics simulations of water permeation and ion selectivity of the single-walled carbon nanotubes with the radial deformation are presented . The simulated results indicate that there is a close relationship between the…

Mesoscale and Nanoscale Physics · Physics 2012-03-01 Xu Kui , Wang Qing-Song , Tan Bin , Chen Ming-Xuan , Miao Ling , Jiang Jian-Jun

Deformation properties of multi-wall gold nanowires under compressive loading are studied. Nanowires are simulated using a realistic many-body potential. Simulations start from cylindrical fcc(111) structures at T=0 K. After annealing…

Materials Science · Physics 2009-11-07 G. Bilalbegovic

The axial stiffness of MWCNTs is demonstrated to be determined only by several external shells (usually 3-5 and up to 15 for the extremely large nanotubes and high elongations) what is in a good agreement with experimentally observed…

Materials Science · Physics 2015-03-19 Vladimir Zavalniuk

We have studied the high-bias transport properties of the different shells that constitute a multiwalled carbon nanotube. The current is shown to be reduced as the shell diameter is decreased or the length is increased. We assign this…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 B. Bourlon , D. C. Glattli , B. Placais , J. M. Berroir , L. Forro , A. Bachtold

Carbon nanotubes provide a new class of molecular wires that display new and exciting mesoscopic transport properties. We provide a detailed theoretical description for transport in multi-wall nanotubes, where both disorder and strong…

Strongly Correlated Electrons · Physics 2009-11-07 R. Egger , A. O. Gogolin

The inter-shell spacing of multi-walled carbon nanotubes was determined by analyzing the high resolution transmission electron microscopy images of these nanotubes. For the nanotubes that were studied, the inter-shell spacing…

Materials Science · Physics 2009-10-31 C. -H. Kiang , M. Endo , P. M. Ajayan , G. Dresselhaus , M. S. Dresselhaus

We compute electrostatic fields induced deformations of cantilevered finite-length metallic carbon nanotubes, using an energy minimization method based on a charge-dipole moment interaction potential combined with an empirical many-body…

Mesoscale and Nanoscale Physics · Physics 2018-10-26 Z. Wang , M. Devel

We have investigated the diffusion and structure of TIP4P/2005 water confined in carbon nanotubes subjected to external electric fields. A wide range of diameters has been used to show a highly size-dependent behavior of the water…

The measured electric resistance of carbon nanotubes wrapped with DNA molecules depends strongly on the spin of the injected electrons. Motivated by these experiments, we study the effect of helix-shaped potentials on the electronic…

Mesoscale and Nanoscale Physics · Physics 2018-11-14 Yotam Perlitz , Karen Michaeli

This article deals with the multiscale modeling of stress transfer characteristics of nano-reinforced polymer composite reinforced with regularly staggered carbon fibers. The distinctive feature of construction of nano-reinforced composite…

Materials Science · Physics 2017-02-06 S. I. Kundalwal , S. A. Meguid

Under the application of electrical currents, metal nanocrystals inside carbon nanotubes can be bodily transported. We examine experimentally and theoretically how an iron nanocrystal can pass through a constriction in the carbon nanotube…

Mesoscale and Nanoscale Physics · Physics 2013-04-30 Sinisa Coh , Will Gannett , A. Zettl , Marvin L. Cohen , Steven G. Louie

A (10x10) single-walled carbon nanotube consisting of 400 atoms with 20 layers is simulated under tensile loading using our developed O(N) parallel tight-binding molecular-dynamics algorithms. It is observed that the simulated carbon…

Condensed Matter · Physics 2009-11-10 G. Dereli , C. Ozdogan

Understanding the kinetic selectivity of carbon nanotube growth at the scale of individual nanotubes is essential for the development of high chiral selectivity growth methods. Here we demonstrate that homodyne polarization microscopy can…

The electronic properties of carbon nanotubes in a uniform transverse field are investigated within a single orbital tight-binding model. For doped nanotubes, the dielectric function is found to depend not only on symmetry of the tube, but…

Materials Science · Physics 2015-06-24 Yan Li , Slava V. Rotkin , Umberto Ravaioli

The continuous two-dimensional (2D) elastic model for single-walled carbon nanotubes (SWNTs) provided by Tu and Ou-Yang in [Phys. Rev. B \textbf{65}, 235411 (2003)] is reduced to a one-dimensional (1D) curvature elastic model strictly. This…

Mesoscale and Nanoscale Physics · Physics 2015-03-18 Xiaohua Zhou

Recently Zheng and Jiang [PRL 88, 045503 (2002)], based on static models, have proposed that multiwalled carbon nanotubes could be the basis for a new generation of nanooscilators in the several gigahertz range. In this work we present the…

Materials Science · Physics 2009-11-07 S. B. Legoas , V. R. Coluci , S. F. Braga , P. Z. Coura , S. O. Dantas , D. S. Galvao

An efficient modified arc plasma method, where a focusing electric field is superimposed on the arc electric field, is optimized for the bulk generation of highly pure multi-walled carbon nanotubes. Raman spectroscopy and thermogravimetric…

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