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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.…

Materials Science · Physics 2009-11-13 G. Dereli , B. Sungu , C. Ozdogan

We calculate the energy-band structure of a He atom trapped within the interstitial channel between close-packed nanotubes within a bundle and its influence on the specific heat of the adsorbed gas. A robust prediction of our calculations…

Statistical Mechanics · Physics 2009-11-07 A. Siber , H. Buljan

Interaction of single-walled carbon nanotubes with electron donor and acceptor molecules causes significant changes in the electronic and Raman spectra, the relative proportion of the metallic species increasing on electron donation through…

Materials Science · Physics 2008-05-29 Rakesh Voggu , Chandra Sekhar Rout , Aaron D. Franklin , Timothy S. Fisher , C. N. R. Rao

We review our recent modelling work of carbon nanotubes as potential candidates for heat dissipation in microelectronics cooling. In the first part, we analyze the impact of nanotube defects on their thermal transport properties. In the…

Mesoscale and Nanoscale Physics · Physics 2013-09-27 Alejandro Pérez Paz , Juan María García-Lastra , Troels Markussen , Kristian Sommer Thygesen , Angel Rubio

We present proof-of-operation for a new method of electron thermometry using microwave impedance of a hafnium micro-absorber. The new method leads to an ultimate THz-range detector suitable for microwave readout and frequency division…

Instrumentation and Detectors · Physics 2019-11-27 A. V. Merenkov , V. I. Chichkov , A. B. Ermakov , A. V. Ustinov , S. V. Shitov

Model calculations are presented which predict whether or not an arbitrary gas experiences significant absorption within carbon nanotubes and/or bundles of nanotubes. The potentials used in these calculations assume a conventional form,…

Statistical Mechanics · Physics 2009-10-31 G. Stan , M. J. Bojan , S. Curtarolo , S. M. Gatica , M. W. Cole

We present an experimental investigation on the scaling of resistance in individual single walled carbon nanotube devices with channel lengths that vary four orders of magnitude on the same sample. The electron mean free path is obtained…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Meninder Purewal , Byung Hee Hong , Anirudhh Ravi , Bhupesh Chandra , James Hone , Philip Kim

In this article we investigate through molecular dynamics simulations the diffusion behavior of the TIP4P/2005 water when confined in pristine and deformed carbon nanotubes (armchair and zigzag). To analyze different diffusive mechanisms,…

Soft Condensed Matter · Physics 2021-02-03 Bruno H. S. Mendonça , Patricia Ternes , Evy Salcedo , Alan B. de Oliveira , Marcia C. Barbosa

We present a real-time investigation of ultrafast carrier dynamics in single-wall carbon nanotube bundles using femtosecond time-resolved photoelectron spectroscopy. The experiments allow to study the processes governing the subpicosecond…

Materials Science · Physics 2009-11-07 Tobias Hertel , Roman Fasel , Gunnar Moos

We investigate the imprint of nonlinear matter condensations on the Cosmic Microwave Background (CMB) in an $\Omega=1$, Cold Dark Matter (CDM) model universe. Temperature anisotropies are obtained by numerically evolving matter…

Astrophysics · Physics 2016-08-30 Robin Tuluie , Pablo Laguna

Heat conduction of single-walled carbon nanotubes (SWNTs) isotope-superlattice is investigated by means of classical molecular dynamics simulations. Superlattice structures were formed by alternately connecting SWNTs with different masses.…

Materials Science · Physics 2009-11-11 Junichiro Shiomi , Shigeo Maruyama

We report the transmission over a wide frequency range (far infrared - visible) of pristine and hole-doped, free-standing carbon nanotube films at temperatures between 50 K and 300 K. Optical constants are estimated by Kramers-Kronig…

Materials Science · Physics 2013-05-29 F. Borondics , K. Kamaras , M. Nikolou , D. B. Tanner , Z. H. Chen , A. G. Rinzler

We present the first low-temperature thermodynamic investigation of the controlled physisorption of He$^{4}$ gas in carbon single-wall nanotube (SWNT) samples. The vibrational specific heat measured between 100 mK and 6 K demonstrates an…

Materials Science · Physics 2009-11-10 J. C. Lasjaunias , K. Biljakovic , J. L. Sauvajol , P. Monceau

Ultrafast degenerate pump-probe experiments performed on a free standing film of double walled carbon nanotubes near the first metallic transition energy of outer tube show ultrafast ($97 fs$) photobleaching followed by a photo-induced…

Other Condensed Matter · Physics 2009-11-13 N. Kamaraju , Sunil Kumar , B. Karthikeyan , Alexander Moravsky , R. O. Loutfy , A. K. Sood

Thermal conductivities $\Lambda $ of amorphous carbon thin films are measured in the temperatures range 80--400 K using the $3\omega $ method. Sample films range from soft a-C:H prepared by remote-plasma deposition ($\Lambda = 0.20$ W…

Materials Science · Physics 2009-10-31 Andrew J. Bullen , Keith E. O'Hara , David G. Cahill , Othon Monteiro , Achim von Keudell

Normal mode phonon transmissions are studied in carbon nanotubes with the presence of Stone-Wales (SW) defect, using a mode-matching method and through the analysis of symmetry. The calculation shows that the transmission for low group…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Jian Wang , Jian-Sheng Wang

Single-wall carbon nanotubes are almost ideal systems for the investigation of exotic many-body effects due to non-Fermi liquid behavior of interacting electrons in one dimension. Recent theoretical and experimental results are reviewed…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 A. Odintsov , H. Yoshioka

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…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 David H. Cobden , Jesper Nygard , Marc Bockrath , Paul L. McEuen

We study the excitonic recombination dynamics in an ensemble of (9,4) semiconducting single-wall carbon nanotubes by high sensitivity time-resolved photo-luminescence experiments. Measurements from cryogenic to room temperature allow us to…

Other Condensed Matter · Physics 2015-06-25 S. Berger , C. Voisin , G. Cassabois , C. Delalande , Philippe Roussignol , X. Marie

I estimate maximum thermal conductivity $\kappa$ of a perfectly aligned bundle of single wall carbon nanotubes. Each row of aligned nanotubes has a discrete structure. It consists of segments of nanotubes with length $L$. The spacing…

Materials Science · Physics 2007-05-23 A. L. Efros
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