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Related papers: A Shell Theory for Chiral Single-Wall Carbon Nanot…

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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

Molecular dynamics simulations based on the adaptive intermolecular reactive empirical bond order (AIREBO) were performed to probe hydrostatic pressure induced collapse of single-walled and double-walled carbon nanotubes. It was unveiled…

Mesoscale and Nanoscale Physics · Physics 2018-12-26 Yoshitaka Umeno , Yu Yachi , Motohiro Sato , Hiroyuki Shima

In this supplement we present a short derivation of dynamical equations of thin elastic shell in the framework of modified nonlinear Sanders-Koiter theory, and their relationship with the dynamics of one-dimensional oscillatory chain.

Mesoscale and Nanoscale Physics · Physics 2013-09-25 Valeri V. Smirnov , Denis S. Shepelev , Leonid I. Manevitch

We report on the characterization of torsional oscillators which use multi-walled carbon nanotubes as the spring elements. Through atomic-force-microscope force-distance measurements we are able to apply torsional strains to the nanotubes…

Materials Science · Physics 2009-11-07 P. A. Williams , S. J. Papadakis , A. M. Patel , M. R. Falvo , S. Washburn , R. Superfine

Recently experiments showed that nodal structural defects are readily formed in the synthesis of single-walled carbon nanotubes (SWNTs) and consequently, SWNTs are likely to deviate from well-defined seamless tubular structures. Here, using…

Mesoscale and Nanoscale Physics · Physics 2014-10-02 Young I. Jhon , Woonjo Cho , Seok Lee , Young Min Jhon

Magnetic response of interacting electrons in a zigzag carbon nanotube threaded by a magnetic flux is investigated within a Hartree-Fock mean field approach. Following the description of energy spectra for both non-interacting and…

Mesoscale and Nanoscale Physics · Physics 2012-04-19 Paramita Dutta , Santanu K. Maiti , S. N. Karmakar

We have measured the magnetoresistance of stretched sheets of carbon nanotubes in temperatures ranging from 2 K to 300 K and in magnetic fields up to 9 T, oriented either perpendicular or parallel to the plane of the sheets. The samples…

Mesoscale and Nanoscale Physics · Physics 2015-06-05 E. Cimpoiasu , G. A. Levin , B. White , D. Lashmore

Magnetic properties with 3 different sizes of Ni nanochains, synthesized by a technique of wet chemical solution, have been investigated experimentally. The sample sizes are 50 nm, 75 nm, and 150 nm with a typical length of a few microns.…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Wangzhi Zheng , Lin He , Chinping Chen , Lin He , Wei Zhou , Chenmin Liu , Lin Guo , Huibin Xu

A theoretical description of ESR in 1D interacting metals is given, with primary emphasis on carbon nanotubes. The spin-orbit coupling is derived, and the resulting ESR spectrum is analyzed by field theory and exact diagonalization. Drastic…

Strongly Correlated Electrons · Physics 2009-11-07 A. De Martino , R. Egger , K. Hallberg , C. A. Balseiro

We investigate competing insulating phases in nearly metallic zigzag carbon nanotubes, under conditions where an applied magnetic flux approximately closes the single particle gap in one valley. Recent experiments have shown that an energy…

Mesoscale and Nanoscale Physics · Physics 2023-01-04 Assaf Voliovich , Mark S. Rudner , Yuval Oreg , Erez Berg

The classical ground state magnetic response of fullerene molecules that resemble capped carbon nanotubes is calculated within the framework of the antiferromagnetic Heisenberg model. It is found that the magnetic response depends subtly on…

Strongly Correlated Electrons · Physics 2017-04-28 N. P. Konstantinidis

We report on the structural, electric and magnetic properties of $(\mathrm{Ni}_x\mathrm{Co}_{1-x})\mathrm{B}$ ferromagnetic nanotubes, displaying azimuthal magnetization. The tubes are fabricated using electroless plating in polycarbonate…

We perform density functional theory calculations on a series of armchair and zigzag nanotubes of diameters less than 1nm using the all-electron Full-Potential(-Linearised)-Augmented-Plane-Wave (FPLAPW) method. Emphasis is laid on the…

Condensed Matter · Physics 2009-11-10 J. T. Titantah , K. Jorissen , D. Lamoen

We present a novel, self-consistent and robust theoretical model to investigate elastic interactions between topological defects in liquid crystal shells. Accounting for the non-concentric nature of the shell in a simple manner, we are able…

Soft Condensed Matter · Physics 2016-12-14 Alexandre Darmon , Olivier Dauchot , Teresa Lopez-Leon , Michael Benzaquen

The possibility for double-wall carbon nanotube to operate as the bolt and nut pair is studied. The barriers for relative motions of walls along the helical "thread" line and for jumps on neighbour helical lines are calculated as functions…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Yurii E. Lozovik , Andrey V. Minogin , Andrey M. Popov

The electronic bandgaps measured in fluorescence spectroscopy on individual single wall carbon nanotubes isolated within micelles show signficant deviations from the predictions of one electron band theory. We resolve this problem by…

Materials Science · Physics 2009-11-10 C. L. Kane , E. J. Mele

The curvature effects in carbon nanotubes are studied analytically as a function of chirality. The pi-orbitals are found to be significantly rehybridized in all tubes, so that they are never normal to the tubes' surface. This results in a…

Strongly Correlated Electrons · Physics 2009-11-07 Alex Kleiner , Sebastian Eggert

Aggregation of carbon nanotubes dispersed in nematic liquid crystalline medium is discussed. A model is proposed, which assumes that the aggregates consist of a "skeleton" formed by stochastically arranged nanotubes and a "shell" ("coat")…

Mesoscale and Nanoscale Physics · Physics 2011-01-06 Longin N. Lisetski , Nikolai I. Lebovka , Sergei V. Naydenov , Marat S. Soskin

Carbon nanorings are hoop-shaped, {\pi}-conjugated macrocycles which form the fundamental annular segments of single-walled carbon nanotubes (SWNTs). In a very recent report, the structures of chiral carbon nanorings (which may serve as…

Mesoscale and Nanoscale Physics · Physics 2015-03-13 Bryan M. Wong , Jonathan W. Lee

The electronic structure of finite-length armchair carbon nanotubes has been studied using several ab-initio and semi-empirical quantum computational techniques. The additional confinement of the electrons along the tube axis leads to the…

Materials Science · Physics 2007-05-23 Alain Rochefort , Dennis R. Salahub , Phaedon Avouris