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Nanomechanical resonators are used with great success to couple mechanical motion to other degrees of freedom, such as photons, spins, and electrons. Mechanical vibrations can be efficiently cooled and amplified using photons, but not with…

Mesoscale and Nanoscale Physics · Physics 2020-08-24 C. Urgell , W. Yang , S. L. de Bonis , C. Samanta , M. J. Esplandiu , Q. Dong , Y. Jin , A. Bachtold

We use ab initio total-energy calculations to predict the existence of polarons in semiconducting carbon nanotubes (CNTs). We find that the CNTs' band edge energies vary linearly and the elastic energy increases quadratically with both…

Materials Science · Physics 2009-10-31 Marcos Verissimo-Alves , R. B. Capaz , Belita Koiller , Emilio Artacho , H. Chacham

We use molecular dynamics simulations to study the diffusion of water inside deformed carbon nanotubes with different degrees of deformation at 300 K. We found that the number of hydrogen bonds that water forms depends on nanotube topology,…

Soft Condensed Matter · Physics 2020-01-16 Bruno H. S. Mendonça , Patricia Ternes , Evy Salcedo , Alan B. de Oliveira , Marcia C. Barbosa

Semiconducting single-walled carbon nanotubes are studied in the diffusive transport regime. The peak mobility is found to scale with the square of the nanotube diameter and inversely with temperature. The maximum conductance, corrected for…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Xinjian Zhou , Ji-Yong Park , Shaoming Huang , Jie Liu , Paul L. McEuen

In this paper heat transport in carbon nanotubes is investigated. When the dimension of the structure is of the order of the de Broglie wave length transport phenomena must be analysed by quantum mechanics. In this paper we derived the…

Other Condensed Matter · Physics 2007-05-23 Miroslaw Kozlowski , Janina Marciak-Kozlowska

In this paper the heat transport in carbon nanotubes is investigated. When the dimension of the structure is of the order of the de Broglie wave length the transport phenomena must be analyzed within quantum mechanics. In this paper we…

Other Condensed Matter · Physics 2016-08-31 J. Marciak-Kozlowska , M. Kozlowski

Electron motion in a (n,1) carbon nanotube is shown to correspond to a de Broglie wave propagating along a helical line on the nanotube wall. This helical motion leads to periodicity of the electron potential energy in the presence of an…

Other Condensed Matter · Physics 2007-05-23 O. V. Kibis , D. G. W. Parfitt , M. E. Portnoi

The physics of vibrational kinetics in nitrogen-containing plasma produced by collisions with electrons is studied on the basis of recently derived cross sections and rate coefficients for the resonant vibrational-excitation by…

Chemical Physics · Physics 2013-04-17 V. Laporta , D. Bruno

Using an atomic force microscope we have created nanotube junctions such as buckles and crossings within individual single-wall metallic carbon nanotubes connected to metallic electrodes. The electronic transport properties of these…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Henk W. Ch. Postma , Mark de Jonge , Zhen Yao , Cees Dekker

The electronic density of states of atomically resolved single-walled carbon nanotubes have been investigated using scanning tunneling microscopy. Peaks in the density of states due to the one-dimensional nanotube band structure have been…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Philip Kim , Teri W. Odom , Jin-Lin Huang , Charles M. Lieber

Knowing the characteristic relaxation time of free electrons in a dense plasma is crucial to our understanding of plasma equilibration and transport. However, experimental investigations of electron relaxation dynamics have been hindered by…

Plasma Physics · Physics 2024-08-27 Yuanfeng Shi , Shenyuan Ren , Hyun-kyung Chung , Justin S. Wark , Sam M. Vinko

We present a comprehensive investigation of nonequilibrium effects and self heating in single electron transfer devices based primarily on the Coulomb blockade effect. During an electron trapping process, a hot electron may be deposited in…

Condensed Matter · Physics 2008-02-03 Chiu Liu , Qian Niu

Classical and quantum dynamics are important limits for the understanding of the transport characteristics of interacting electrons in nanodevices. Here we apply an intermediate semiclassical approach to investigate the dynamics of two…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 Christoph M. Puetter , Satoru Konabe , Yasuhiro Hatsugai , Kenji Ohmori , Kenji Shiraishi

The present paper is a review of the phenomena related to non-equilibrium electron relaxation in bulk and nano-scale metallic samples. The workable Two-Temperature Model (TTM) based on Boltzmann-Bloch-Peierls (BBP) kinetic equation has been…

Statistical Mechanics · Physics 2009-03-23 Navinder Singh

The one-dimensional confinement of quasiparticles in individual carbon nanotubes (CNTs) leads to extremely anisotropic electronic and optical properties. In a macroscopic ensemble of randomly oriented CNTs, this anisotropy disappears…

In this paper we develop tools for observers to use when analysing nebular spectra for temperatures and metallicities, with two goals: to present a new, simple method to calculate equilibrium electron temperatures for collisionally excited…

Astrophysics of Galaxies · Physics 2013-07-18 David C. Nicholls , Michael A. Dopita , Ralph S. Sutherland , Lisa J. Kewley , Ethan Palay

In carbon nanotubes, the most abundant defects, caused for example by irradiation or chemisorption treatments, are small perturbing clusters, i.e. bi-site defects, extending over both A and B sites. The relative positions of these…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 M. J. Hashemi , K. Sääskilahti , M. J. Puska

We examine the effects of electron-electron interactions on transport between edge states in a multilayer integer quantum Hall system. The edge states of such a system, coupled by interlayer tunneling, form a two-dimensional, chiral metal…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 J. W. Tomlinson , J. -S. Caux , J. T. Chalker

We present a combined experimental and theoretical analysis of the low bias conductance properties of carbon nanotubes coupled to superconducting leads. In the Kondo regime the conductance exhibits a zero bias peak which can be several…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 E. Vecino , M. R. Buitelaar , A. Martin-Rodero , C. Schonenberger , A. Levy Yeyati

Non-local conductance experiments using tunnel junctions can provide valuable spectroscopic information on both the transport and relaxation of quasiparticles in superconductors, as these techniques directly probe the quasiparticle charge…

Superconductivity · Physics 2026-04-30 Kevin M. Ryan , Detlef Beckmann , Venkat Chandrasekhar
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