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We present a scaling analysis of electronic and transport properties of metal-semiconducting carbon nanotube interfaces as a function of the nanotube length within the coherent transport regime, which takes fully into account atomic-scale…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Yongqiang Xue , Mark A. Ratner

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

The electronic and transport properties of (10, 0) single-walled carbon nanotube are studied by performing the first-principles calculations and semi-classical Boltzmann theory. It is found that the (10, 0) tube exhibits considerably large…

Mesoscale and Nanoscale Physics · Physics 2016-01-06 P. H. Jiang , H. J. Liu , D. D. Fan , L. Cheng , J. Wei , J. Zhang , J. H. Liang , J. Shi

Carbon nanotube (CNT) fibres are firmly established as a new high-performance fibre, but their tensile mechanical properties remain a relatively small fraction of those of the constituent CNTs. Clear structure-property relations and…

Applied Physics · Physics 2020-08-05 J. C. Fernández-Toribio , A. Mikhalchan , C. Santos , A. Ridruejo , J. J. Vilatela

We characterize the energy loss of the non-equilibrium electron system in individual metallic single-walled carbon nanotubes at low temperature. Using Johnson noise thermometry, we demonstrate that, for a nanotube with ohmic contacts, the…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 Daniel F. Santavicca , Joel D. Chudow , Daniel E. Prober , Meninder S. Purewal , Philip Kim

The effects of water wetting conditions on the transport properties of molecular nano-junctions are investigated theoretically by using a combination of classical molecular dynamics and first principles electronic transport calculations.…

Mesoscale and Nanoscale Physics · Physics 2015-05-18 I. Rungger , X. Chen , U. Schwingenschlögl , S. Sanvito

Fibres of ultralong and aligned carbon nanotubes (CNT) have axial properties above reference engineering materials, proving to be exceptional materials for application in structural composites, energy storage and other devices. For CNT…

Materials Science · Physics 2021-05-07 Anastasiia Mikhalchan , María Vila , Luis Arévalo , Juan J. Vilatela

Quantum phonon transport through benzene and alkane chains amide-linked with single wall carbon nanotubes (SWCNTs) is studied within the level of density functional theory. The force constant matrices are obtained from standard quantum…

Mesoscale and Nanoscale Physics · Physics 2009-01-02 J. T. Lü , Jian-Sheng Wang

Thermal transport coefficients are independent of the specific microscopic expression for the energy density and current from which they can be derived through the Green-Kubo formula. We discuss this independence in terms of a kind of gauge…

Statistical Mechanics · Physics 2017-06-09 Loris Ercole , Aris Marcolongo , Paolo Umari , Stefano Baroni

We present a method, based on the classical Green-Kubo theory of linear response, to compute the heat conductivity of extended systems, leveraging energy-density, rather than energy-current, fluctuations, thus avoiding the need to devise an…

Materials Science · Physics 2024-02-01 Enrico Drigo , Maria Grazia Izzo , Stefano Baroni

Based on density functional theory calculations, we here show that the formation of a fullerene C$_{60}$ carbon "nanobud" (CNB) on carbon nanotube (CNT) caps is energetically more favorable than that on CNT sidewalls. The dominant CNB…

Mesoscale and Nanoscale Physics · Physics 2016-02-17 Ji Il Choi , Hyo Seok Kim , Han Seul Kim , Ga In Lee , Jeung Ku Kang , Yong-Hoon Kim

We investigate correlated electronic transport in single-walled carbon nanotubes with two intramolecular tunneling barriers. We suggest that below a characteristic temperature the long range nature of the Coulomb interaction becomes crucial…

Strongly Correlated Electrons · Physics 2009-11-07 M. Thorwart , M. Grifoni , G. Cuniberti , H. W. Ch. Postma , C. Dekker

We report on electrical resistance measurements of an individual carbon nanotube down to a temperature T=20 mK. The conductance exhibits a ln T dependence and saturates at low temperature. A magnetic field applied perpendicular to the tube…

We compute the thermal conductance between two nanoparticles in contact based on the Molecular Dynamics technique. The contact is generated by letting both particles stick together under van der Waals attractions. The thermal conductance is…

Materials Science · Physics 2008-12-18 Gilberto Domingues , D. Rochais , Sebastian Volz

We calculate the thermoelectric power (or thermopower) of many semiconducting single wall carbon nanotubes (s-SWNTs) within a diameter range 0.5-1.5 nm by using the Boltzmann transport formalism combined with an extended tight-binding…

Mesoscale and Nanoscale Physics · Physics 2015-10-27 Nguyen T. Hung , Ahmad R. T. Nugraha , Eddwi H. Hasdeo , Mildred S. Dresselhaus , Riichiro Saito

In this paper we describe a spatial decomposition of the thermal conductivity, what we name "site-projected thermal conductivity", a gauge of the thermal conduction activity at each site. The method is based on the Green-Kubo formula and…

Materials Science · Physics 2025-09-16 C. Ugwumadu , A. Gautam , Y. G. Lee , D. A. Drabold

Because of their natural one-dimensional (1D) structure combined with intricate chiral variations, carbon nanotubes (CNTs) exhibit various exceptional physical properties, such as ultrahigh electrical and thermal conductivity, exceptional…

Charge and heat transport through a single molecule tunnel-coupled to external normal electrodes have been studied. The molecule with sufficiently strong interaction between lectrons and vibrational internal degrees of freedom can be…

Mesoscale and Nanoscale Physics · Physics 2012-04-16 Karol Izydor Wysokinski

We report electrical transport measurements through a semiconducting single-walled carbon nanotube (SWNT) with three additional top-gates. At low temperatures the system acts as a double quantum dot with large inter-dot tunnel coupling…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 M. R. Graeber , W. A. Coish , C. Hoffmann , M. Weiss , J. Furer , S. Oberholzer , D. Loss , C. Schoenenberger

We report on the intershell electron transport in multiwalled carbon nanotubes (MWNT). To do this, local and nonlocal four-point measurements are used to study the current path through the different shells of a MWNT. For short electrode…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 B. Bourlon , C. Miko , L. Forro , D. C. Glattli , A. Bachtold