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相关论文: Coupled thermo-mechanics of single-wall carbon nan…

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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)…

材料科学 · 物理学 2009-11-13 G. Dereli , B. Sungu

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…

凝聚态物理 · 物理学 2009-11-07 Chenyu Wei , Kyeongjae Cho , Deepak Srivastava

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…

介观与纳米尺度物理 · 物理学 2017-07-05 Vít Jakubský , Axel Pérez-Obiol

We investigate experimentally the transport properties of single-walled carbon nanotube bundles as a function of temperature and applied current over broad intervals of these variables. The analysis is performed on arrays of nanotube…

材料科学 · 物理学 2009-11-13 M. Salvato , M. Cirillo , M. Lucci , S. Orlanducci , I. Ottaviani , M. L. Terranova , F. Toschi

We report the first study on the thermal behaviour of the stiffness of individual carbon nanotubes, which is achieved by measuring the resonance frequency of their fundamental mechanical bending modes. We observe a reduction of the Young's…

介观与纳米尺度物理 · 物理学 2021-05-05 S. Tepsic , G. Gruber , C. B. Moller , C. Magen , P. Belardinelli , E. R. Hernadez , F. Alijani , P. Verlot , A. Bachtold

Nonchiral single wall carbon nanotubes with an "armchair" wrapping are theoretically predicted to be conducting, and high purity samples consisting predominantly of these tubes exhibit metallic behavior with an intrinsic resistivity which…

We have investigated the thermal rectification phenomenon in a single-wall mass graded carbon nanotube by molecular dynamics simulation. Second generation Brenner potential has been used to model the inter atomic carbon interaction. Fixed…

材料科学 · 物理学 2015-06-22 M. Ebrahim Foulaadvand , Azadeh Saeedi , Farrokh Yousefi , Saeed Khadesadr

Order(N) Tight-Binding Molecular Dynamics (TBMD) simulations are performed to investigate the thermal stability of (10,10) metallic Single-Walled Carbon Nanotubes (SWCNT). Periodic boundary conditions (PBC) are applied in axial direction.…

材料科学 · 物理学 2009-11-13 G. Dereli , B. Sungu , C. Ozdogan

We have measured the thermoelectric power (S) of high purity single-walled carbon nanotube mats as a function of temperature at various hydrostatic pressures up to 2.0 GPa. The thermoelectric power is positive, and it increases in a…

强关联电子 · 物理学 2014-01-15 N. Barisic , R. Gaal , I. Kezsmarki , G. Mihaly , L. Forro

We report results of theoretical studies on the elastic properties of single-wall nanotubes of the following compositions: C, BN, ${BC}_3$, ${BC}_2{N}$ and ${C}_3{N}_4$. These studies have been carried out using a total energy,…

材料科学 · 物理学 2009-10-31 E. Hernandez , C. Goze , P. Bernier , A. Rubio

We report on the temperature dependence of the intrinsic resistance of long individual disordered single-wall carbon nanotubes. The resistance grows dramatically as the temperature is reduced, and the functional form is consistent with an…

材料科学 · 物理学 2007-05-23 B. Gao , D. C. Glattli , B. Placais , A. Bachtold

The specific heat at constant pressure of bundles of single-walled carbon nanotubes closed at their ends has been investigated in a temperature interval of 2-120 K. It is found that the curve of heat capacity has features near 5, 36, 80,…

介观与纳米尺度物理 · 物理学 2013-03-05 M. I. Bagatskii , M. S. Barabashko , A. V. Dolbin , V. V. Sumarokov

We report measurements of the temperature and gate voltage dependence for individual bundles (ropes) of single-walled nanotubes. When the conductance is less than about e^2/h at room temperature, it is found to decrease as an approximate…

介观与纳米尺度物理 · 物理学 2009-10-31 David H. Cobden , Jesper Nygard , Marc Bockrath , Paul L. McEuen

The stability of a single-walled carbon nanotube placed on top of a catalytic nickel nanoparticle is investigated by means of molecular dynamics simulations. As a case study, we consider the $(12,0)$ nanotube consisting of 720 carbon atoms…

化学物理 · 物理学 2016-10-07 Alexey V. Verkhovtsev , Stefan Schramm , Andrey V. Solov'yov

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…

凝聚态物理 · 物理学 2009-11-10 G. Dereli , C. Ozdogan

Elastic properties of carbon nanotubes and nanoropes are investigated using an empirical force-constant model. For single and multi-wall nanotubes the elastic moduli are shown to be insensitive to details of the structure such as the…

材料科学 · 物理学 2009-10-30 J. P. Lu

We present new data and a compact mobility model for single-wall carbon nanotubes, with only two adjustable parameters, the elastic and inelastic collision mean free paths at 300 K. The mobility increases with diameter, decreases with…

介观与纳米尺度物理 · 物理学 2010-03-23 Y. Zhao , A. Liao , E. Pop

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…

介观与纳米尺度物理 · 物理学 2015-06-25 Eric Pop , David Mann , Qian Wang , Kenneth Goodson , Hongjie Dai

The physics of adhesion of one-dimensional nano structures such as nanotubes, nano wires, and biopolymers on different material substrates is of great interest for the study of biological adhesion and the development of nano electronics and…

材料科学 · 物理学 2015-05-20 Tianjun Li , Anthony AYARI , Ludovic Bellon

We develop a continuous theory of low-frequency dynamics for single-walled carbon nanotubes (SWCNTs) weakly interacting with the environment. In the frame of the approach proposed we obtain temperature dependence of SWCNTs specific heat in…

介观与纳米尺度物理 · 物理学 2015-05-20 M. V. Avramenko , I. Yu. Golushko , A. E. Myasnikova , S. B. Rochal
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