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The linear polarizability absorption spectra of the double-walled carbon nanotubes (DWNTs) have been calculated by using the tight-binding (TB) model and sum-over-state (SOS) method, supplemented by the first principles CASTEP calculations.…

Materials Science · Physics 2009-11-13 Xiaoping Yang , Jiangwei Chen , Hui Jiang , Jinming Dong

The structures and symmetries of single-walled carbon nanotubes (SWNTs) are introduced in detail. The physical properties of SWNTs induced by their symmetries can be described by tensors in mathematical point of view. It is found that there…

Mesoscale and Nanoscale Physics · Physics 2009-09-29 Z. C. Tu , Z. C. Ou-Yang

A simple method to calculate the static electric polarization of single-walled carbon nanotube (SWNT) is obtained within the second-order perturbation approximation. The results are in agreement with the previous calculation within the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Xin Zhou , Hu Chen , Ou-Yang Zhong-can

Dielectric properties of carbon nanotubes (CNT) are calculated with taking into account the deviation of carbon valence electrons from to be placed exactly on the CNT surface. The results show difference to the usually applied 2D electron…

Mesoscale and Nanoscale Physics · Physics 2012-04-04 V. A. Aleksandrov , A. V. Stepanov , G. M. Filippov

This paper is the first one of a series of two articles in which we revisit the optical properties of single-walled carbon nanotubes (SWNT). Produced by rolling up a graphene sheet, SWNT owe their intriguing properties to their cylindrical…

Mathematical Physics · Physics 2018-11-30 Morten Rasmussen , Benjamin Ricaud , Baptiste Savoie

The complete energy expression of a deformed single-walled carbon nanotube (SWNT) is derived in the continuum limit from the local density approximation model proposed by Lenosky {\it et al.} \lbrack Nature (London) {\bf 355}, 333…

Materials Science · Physics 2007-05-23 Zhan-chun Tu , Zhong-can Ou-Yang

Three kinds of the response mechanisms to the external pressure have been found for double-walled carbon nanotube (DWNT) bundle, depending strongly on their average radius and symmetry. The small-diameter DWNT bundle undergoes a small…

Materials Science · Physics 2015-05-13 Xiaoping Yang , Gang Wu , Jinming Dong

Molecular level components, like carbon multiwalled nanotubes (MWNT), show great potential for future nanoelectronics. At low frequencies, only the outermost carbon layer determines the transport properties of the MWNT. Due to the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Markus Ahlskog , Pertti Hakonen , Mikko Paalanen , Leif Roschier , Reeta Tarkiainen

Single-walled carbon nanotubes (SWNTs) have many interesting properties; they may be metallic or semiconducting depending on their diameter and helicity of the graphene sheet. Hydrostatic or quasi-hydrostatic high pressures can probe many…

Materials Science · Physics 2009-11-10 R. Falconi , J. A. Azamar , R. Escudero

This work represents the first electro-thermal study of metallic single-wall carbon nanotubes (SWNTs) for interconnect applications. Experimental data and careful modeling reveal that self-heating is of significance in short (1 < L < 10 um)…

Mesoscale and Nanoscale Physics · Physics 2016-11-15 Eric Pop , David Mann , John Reifenberg , Kenneth Goodson , Hongjie Dai

Structural identification of double-walled carbon nanotubes (DWNT) is presented through a robust procedure based on the latest generation of transmission electron microscope, making possible a statistical analysis based on numerous…

Electrostatic screening between carbon nanotubes (CNTs) in a small CNT bundle leads to a switching behavior induced by electric field perpendicular to the bundle axis. Using a first-principles method, we investigate the electronic…

Mesoscale and Nanoscale Physics · Physics 2010-10-06 Gunn Kim , J. Bernholc , Young-Kyun Kwon

The use of carbon nanotubes as optical probes for scanning near-field optical microscopy requires an understanding of their near-field response. As a first step in this direction, we investigated the lateral resolution of a carbon nanotube…

Mesoscale and Nanoscale Physics · Physics 2015-03-13 Andrei M. Nemilentsau , Gregory Ya. Slepyan , Sergey A. Maksimenko , Akhlesh Lakhtakia , Slava V. Rotkin

A method is introduced to isolate and measure the electrical transport properties of individual single-walled carbon nanotubes (SWNTs) aligned on an ST-cut quartz, from room temperature down to 2 K. The diameter and chirality of the…

Mesoscale and Nanoscale Physics · Physics 2014-08-26 Tohru Watanabe , El-Hadi S. Sadki , Takahide Yamaguchi , Yoshihiko Takano

The advancements of nanomaterials or nanostructures have enabled the possibility of fabricating multifunctional materials that hold great promises in engineering applications. The carbon nanotube (CNT)-based nanostructure is one…

Computational Physics · Physics 2015-05-22 Haifei Zhan , John M. Bell , Yuantong Gu

We develop a general approach to calculations of the electron spectrum of metallic multi-wall carbon nanotubes (MWNT) with arbitrary number of coaxial layers. It is based on the model with singular attractive potential of equidistant…

Mesoscale and Nanoscale Physics · Physics 2019-08-17 A. A. Abrikosov, , D. V. Livanov , A. A. Varlamov

This paper proposes a bottom-up sequence of modeling steps leading to a nanoscopically informed continuum, and as such macroscopic, theory of single-walled carbon nanotubes (SWCNTs). We provide a description of the geometry of the two most…

Mesoscale and Nanoscale Physics · Physics 2011-11-22 Chandrajit Bajaj , Antonino Favata , Paolo Podio-Guidugli

The optoelectronic properties of single- and double-wall carbon nanotubes (CNTs) noncovalently functionalized with tetraphenylporphyrins (TPPs) are addressed by dispersion-corrected ab initio calculations. Five CNT species with different…

Materials Science · Physics 2017-01-04 Walter Orellana

Usually, in optical spectra of double-walled carbon nanotubes (DWCNTs) weak van der Waals coupling between the layers leads only to a small shift of transition energies with respect to their values in pristine single-walled nanotubes.…

Mesoscale and Nanoscale Physics · Physics 2020-09-30 D. V. Chalin , S. B. Rochal

We present a multispectroscopic structural study of various nanotube samples with different tube diameters. We determine for each sample the mean bundle and tube diameter as well as the tube diameter distribution. The possibility to work on…

Other Condensed Matter · Physics 2007-05-23 Nicolas Izard , Didier Riehl , Eric Anglaret
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