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How carbon nanotubes behave in an external electric field? What will be the relation between the intensity of the electric field and the tube's deformation? What are the geometry effects on the response of carbon nanotubes to electric…

Mesoscale and Nanoscale Physics · Physics 2018-10-26 Z. Wang , M. Devel , R. Langlet , B. Dulmet

For similar disorder, the backscattering contribution to the conductivity, irrelevant for metallic single-walled carbon nanotubes, is proved to become more significant for doped semiconducting systems, as found in experiments. In the case…

Disordered Systems and Neural Networks · Physics 2009-11-07 Stephan Roche , Francois Triozon , Angel Rubio

A recent study [Rosati, Dolcini, and Rossi, Appl. Phys. Lett. 106, 243101 (2015)] has predicted that, while in semiconducting single-walled carbon nanotubes (SWNTs) an electronic wave packet experiences the typical spatial diffusion of…

Mesoscale and Nanoscale Physics · Physics 2015-12-25 R. Rosati , F. Dolcini , F. Rossi

Atomic models of zigzag (n, 0)- and armchair (n,n)-like NiCl2 nanotubes (n = 4 - 29) formed by rolling (100) single layers of the bulk NiCl2 which crystallizes in the CdCl2-type structure, are constructed and their electronic properties and…

Materials Science · Physics 2007-05-23 V. V. Ivanovskaya , A. N. Enyashin , N. I. Medvedeva , A. L. Ivanovskii

We report the one-electron spectrum and eigenstates of infinite achiral and chiral $(2m,m)$ carbon nanotubes found by using the analytic solution to the Schr\"odinger equation for the tight-binding H\"uckel-type Hamiltonian. With the help…

Mesoscale and Nanoscale Physics · Physics 2022-11-23 L. Malysheva

We investigate the effect of electron-phonon coupling on low temperature phases in metallic single-wall carbon nanotubes. We obtain low-temperature phase diagrams of armchair and zigzag type nanotubes with screened interactions with a…

Strongly Correlated Electrons · Physics 2018-11-14 Junichi Okamoto , Ludwig Mathey , Wen-Min Huang

The quantum-mechanical orbitals in carbon nanotubes are doubly degenerate over a large number of states in the Coulomb blockade regime. We argue that this experimental observation indicates that electrons are reflected without mode mixing…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 A. Makarovski , L. An , J. Liu , G. Finkelstein

It is shown that the band structure of single-wall semiconducting carbon nanotubes (CNT) is analogous to relativistic description of electrons in vacuum, with the maximum velocity $u$= $10^8$cm/s replacing the light velocity.…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Wlodek Zawadzki

The hybrid orbitals of single-wall carbon nanotubes are given according to the structure of the nanotube. Because the energy levels of these hybrid orbitals are close to each other, the sigma-orbitals will affect the behavior of the…

Strongly Correlated Electrons · Physics 2008-05-01 G. -P. Tong , Q. -P. Huang

Progress in the fabrication of nanometer-scale electronic devices is opening new opportunities to uncover the deepest aspects of the Kondo effect, one of the paradigmatic phenomena in the physics of strongly correlated electrons. Artificial…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Pablo Jarillo-Herrero , Jing Kong , Herre S. J. van der Zant , Cees Dekker , Leo P. Kouwenhoven , Silvano De Franceschi

Based on the van der Waals interaction, the periodically nonlinear potential of a singe-walled carbon nanotube (SWNT) with finite length in an infinite length SWNT is analytically obtained. It is found that the inner SWNT can oscillate in…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Z. C. Tu , Z. C. Ou-Yang

Density functional methods have been used to calculate the electronic properties of aligned smalldiameter single-walled carbon nanotubes under hydrostatic pressures. Abrupt pressure induced semiconductor-metal and metal-semiconductor…

Materials Science · Physics 2008-08-27 Sumit Saxena , Trevor A. Tyson

We simulate the twist of carbon nanotubes using atomic molecular dynamic simulations. The ultimate twist angle per unit length and the deformation energy are calculated for nanotubes of different geometries. It is found that the big tube is…

Mesoscale and Nanoscale Physics · Physics 2009-09-21 Zhao Wang , Michel Devel , Bernard Dulmet

The importance of finite-size effects for the electronic structure of long zigzag and armchair carbon nanotubes is studied. We analyze the electronic structure of capped (6,6), (8,0), and (9,0) single walled carbon nanotubes as a function…

Chemical Physics · Physics 2007-05-23 Oded Hod , Juan E. Peralta , Gustavo E. Scuseria

In this paper we study the electronic properties of carbon nanocones with one and two nappes, with pentagonal and heptagonal defects in their lattices. We use the continuum model, which is based on a Dirac-like Hamiltonian with the…

Mesoscale and Nanoscale Physics · Physics 2019-03-27 F. A. Gomes , V. B. Bezerra , J. R. F Lima , F. Moraes

We theoretically studied the electronic and electrical properties of metallic and semiconducting peapods with encapsulated C_{60} (C_{60}@CNT) as a function of the carbon nanotube (CNT) diameter. For exothermic peapods (CNT diameter > 11.8…

Materials Science · Physics 2009-11-10 A. Rochefort

We propose an ab-initio combination of the Linear Muffin-Tin Orbital and the Recursion Methods to study the effect of extended Stone-Wales defects in single layer Carbon nanotubes. We have successfully applied this to zigzag and armchair…

Mesoscale and Nanoscale Physics · Physics 2019-12-30 Sujoy Datta , Banasree Sadhukhan , Chhanda Basu Chaudhuri , Srabani Chakraborty , Abhijit Mookerjee

An extensive first-principles study of fully exo-hydrogenated zigzag (n,0) and armchair (n,n) single wall carbon nanotubes (C$_n$H$_n$), polyhedral molecules including cubane, dodecahedrane, and C$_{60}$H$_{60}$ points to crucial…

Materials Science · Physics 2016-08-16 T. Yildirim , O. Gülseren , S. Ciraci

Using the Landauer-Buttiker formalism, we calculate the effect of structural twist on electron transport in conducting carbon nanotubes. We demonstrate that even a localized region of twist scatters the propagating pi electrons and induces…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Steven W. D. Bailey , David Tomanek , Young-Kyun Kwon , Colin J. Lambert

Theory of the remote Coulomb impurity scattering in single--wall carbon nanotubes is developed within one--electron approximation. Boltzmann equation is solved within drift--diffusion model to obtain the tube conductivity. The conductivity…

Materials Science · Physics 2021-07-02 Alexey G. Petrov , Slava V. Rotkin
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