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Related papers: Phonon interference in the array of carbon nanotub…

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We present a detailed study of the vibrational properties of Single Wall Carbon Nanotubes (SWNTs). The phonon dispersions of SWNTs are strongly shaped by the effects of electron-phonon coupling. We analyze the separate contributions of…

Materials Science · Physics 2007-07-10 Stefano Piscanec , Michele Lazzeri , John Robertson , Andrea Carlo Ferrari , Francesco Mauri

A single-walled carbon nanotube presents a seamless cylindrical graphene surface and is thus an ideal adsorption substrate for investigating the physics of atoms and molecules in two dimensions and approaching the one-dimensional limit.…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 Boris Dzyubenko , Hao-Chun Lee , Oscar E. Vilches , David H. Cobden

We study the influence of structural lattice fluctuations on the elastic electron transport in single-wall carbon nanotubes within a density-functional-based scheme. In the linear response regime, the linear conductance is calculated via…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 M. Gheorghe , R. Gutierrez , N. Ranjan , A. Pecchia , A. Di Carlo , G. Cuniberti

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

This study presents a simple theoretical model describing narrow envelope surface acoustic waves (phonons) and spin waves (magnons) in an ultrathin ferromagnetic film. Based on the general principles of weak wave turbulence, the model…

As an alternative to atomistic calculations of long-wavelength acoustic modes of atomically thin layers, which are known to converge very slowly, we propose a quantitatively predictive and physically intuitive approach based on continuum…

Mesoscale and Nanoscale Physics · Physics 2016-11-23 Dan Liu , Arthur G. Every , David Tomanek

Bending-mode vibrations of carbon nanotube resonator devices were mechanically detected in air at atmospheric pressure by means of a novel scanning force microscopy method. The fundamental and higher order bending eigenmodes were imaged at…

Mesoscale and Nanoscale Physics · Physics 2012-07-12 D. Garcia-Sanchez , A. San Paulo , M. J. Esplandiu , F. Perez-Murano , L. Forro , A. Aguasca , A. Bachtold

We report a novel phenomenon in carbon nanotube (CNT) based devices, the transphonon effects, which resemble the transonic effects in aerodynamics. It is caused by dissipative resonance of nanotube phonons similar to the radial breathing…

Materials Science · Physics 2009-03-12 Zhiping Xu , Quanshui Zheng , Qing Jiang , Chi-Chiu Ma , Yang Zhao , Guanhua Chen , Huajian Gao , Gexue Ren

We use an ab-initio approach to design and study a novel two-dimensional material - a planar array of carbon nanotubes separated by an optimal distance defined by the van der Waals interaction. We show that the energy spectrum for an array…

Mesoscale and Nanoscale Physics · Physics 2019-12-11 R. G. Polozkov , N. Y. Senkevich , S. Morina , P. Kuzhir , M. E. Portnoi , I. A. Shelykh

We present analytical model and molecular dynamics simulations of phonon heat transport in nanowires and nanoribbons with anharmonic lattices and dynamically rough surfaces and edges. In agreement with recent experiments on heat transport…

Statistical Mechanics · Physics 2011-12-30 Yuriy A. Kosevich , Alexander V. Savin

Single metallic nanorods acting as half-wave antennas in the optical range exhibit an asymmetric, multi-resonant scattering spectrum that strongly depends on both their length and dielectric properties. Here we show that such spectral…

The interplay between discrete vibrational and electronic degrees of freedom directly influences the chemical and physical properties of molecular systems. This coupling is typically studied through optical methods such as fluorescence,…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 B. J. LeRoy , S. G. Lemay , J. Kong , C. Dekker

Dynamics of an array of line defects interacting with a background elastic medium is studied in the linear regime. It is shown that the inertial coupling between the defects and the ambient phonons leads to an anomalous response behavior…

Statistical Mechanics · Physics 2009-11-07 Ali Najafi , Ramin Golestanian

The Fano Resonance, involving the mixing between a quasi-bound `discrete' state of an inelastic channel lying in the continuum of scattering states belonging to the elastic channel, has several subtle features. The underlying ideas have…

Mesoscale and Nanoscale Physics · Physics 2010-05-28 Swarnali Bandopadhyay , Binayak Dutta-Roy , H. S. Mani

A simple empirical model and approach are introduced for calculation of the vibrational spectra of arbitrary single wall carbon nanotubes. Differently from the frequently used force constants description, the model employs only invariant…

Materials Science · Physics 2007-05-23 Yu. N. Gartstein

We report here on electrical measurements on individual multi-walled carbon nanotubes (MWNTs) that show that the presence or movement of impurities or defects in the carbon nanotube can radically change its low temperature transport…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Zhengfan Zhang , Venkat Chandrasekhar , Dmitriy A. Dikin , Rodney S. Ruoff

The van der Waals and Casimir interactions of a hydrogen atom (molecule) with a single-walled and a multiwalled carbon nanotubes are compared. It is shown that the macroscopic concept of graphite dielectric permittivity is already…

Statistical Mechanics · Physics 2009-11-13 G. L. Klimchitskaya , E. V. Blagov , V. M. Mostepanenko

We provide a simple scheme for predicting the electronic structure of van-der-Waals bound systems, based on the mere knowledge of the electronic structure of the subunits. We demonstrate this with the example of nano-peapods, consisting of…

Materials Science · Physics 2013-01-21 Matus Milko , Peter Puschnig , Claudia Draxl

Using the atomistic nonequilibrium Green's function, we find that thermal conductance of carbon nanotubes with presence of topological lattice imperfects is remarkably reduced, due to the strong Rayleigh scattering of high-frequency…

Mesoscale and Nanoscale Physics · Physics 2012-03-14 Jian Wang , Liang Li , Jian-Sheng Wang

Recently, the coupling of two different modes of a homogeneous plasmonic particle and their sharply varying spectra were elucidated as Fano resonances; an 'interference' of two spatially orthogonal modes driving each other. On the other…

Optics · Physics 2015-12-24 Srishti Garg , Murugesan Venkatapathi