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相关论文: Single Wall Nanotubes: Atomic Like Behaviour and M…

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We show that a model of interacting electrons in one dimension is able to explain the order of magnitude as well as the temperature dependence of the critical supercurrents recently measured in nanotube samples placed between…

强关联电子 · 物理学 2009-11-07 J. Gonzalez

Single-walled carbon nanotubes (SWNTs) have many interesting properties; they may be metallic or semiconducting depending on their diameter and helicity of the graphene sheet. Hydrostatic or quasi-hydrostatic high pressures can probe many…

材料科学 · 物理学 2009-11-10 R. Falconi , J. A. Azamar , R. Escudero

We present the results of analytical study and Molecular Dynamics simulation of low energy nonlinear non-stationary dynamics of single-walled carbon nanotubes (CNTs). New phenomena of intensive energy exchange between different parts of CNT…

介观与纳米尺度物理 · 物理学 2014-12-30 Valeri V. Smirnov , Leonid I. Manevitch , Matteo Strozzi , Francesco Pelicano

We point out that single electron charging effects such as Coulomb Blockade (CB) and high-bias staircases play a crucial role in transport through single ultrashort molecules. A treatment of Coulomb Blockade through a prototypical molecule,…

介观与纳米尺度物理 · 物理学 2009-11-11 Bhaskaran Muralidharan , Avik W Ghosh , Swapan K Pati , Supriyo Datta

Single-walled carbon nanotubes are strongly correlated systems with large Coulomb repulsion between two electrons occupying the same $p_z$ orbital. Within a molecular Hamiltonian appropriate for correlated $\pi$-electron systems, we show…

材料科学 · 物理学 2009-02-15 Zhendong Wang , Demetra Psiachos , Roberto F. Badilla , Sumit Mazumdar

Controlled doping and understanding its underlying microscopic mechanisms is crucial for advancement of nanoscale electronic technologies, especially in semiconducting single-wall carbon nanotubes (s-SWNTs), where adsorbed counterions are…

材料科学 · 物理学 2023-09-06 Klaus H. Eckstein , Tobias Hertel

The low-energy theory for single-wall carbon nanotubes including Coulomb interactions is derived and analyzed. It describes two fermion chains without interchain hopping but coupled in a specific way by the interaction. The strong-coupling…

凝聚态物理 · 物理学 2009-10-30 Reinhold Egger , Alexander O. Gogolin

The low energy spectrum of finite size metallic single-walled carbon nanotubes SWNTs) is determined. Starting from a tight binding model for the $p_{z}$ electrons, we derive the low energy Hamiltonian containing all relevant scattering…

介观与纳米尺度物理 · 物理学 2009-11-13 Leonhard Mayrhofer , Milena Grifoni

This paper is the first one of a series of two articles in which we revisit the optical properties of single-walled carbon nanotubes (SWNT). Produced by rolling up a graphene sheet, SWNT owe their intriguing properties to their cylindrical…

数学物理 · 物理学 2018-11-30 Morten Rasmussen , Benjamin Ricaud , Baptiste Savoie

Tunneling spectroscopy measurements of single tunnel junctions formed between multiwalled carbon nanotubes (MWNTs) and a normal metal are reported. Intrinsic Coulomb interactions in the MWNTs give rise to a strong zero-bias suppression of a…

介观与纳米尺度物理 · 物理学 2009-11-10 W. Yi , L. Lu , H. Hu , Z. W. Pan , S. Xie

The thermoelectric effects in semiconducting single-walled carbon nanotubes (SWCNTs) are investigated based on the linear response theory combined with the thermal Green's function method. It is shown that the electronic states near the…

介观与纳米尺度物理 · 物理学 2018-10-26 Takahiro Yamamoto , Hidetoshi Fukuyama

We investigate quantum transport in aligned carbon nanotube (CNT) fibers fabricated via solution spinning, focusing on the roles of structural dimensionality and quantum interference effects. The fibers exhibit metallic behavior at high…

The inability to synthesize single-wall carbon nanotubes (SWCNTs) possessing uniform electronic properties and chirality represents the major impediment to their widespread applications. Recently, there is growing interest to explore and…

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…

介观与纳米尺度物理 · 物理学 2009-11-10 Yongqiang Xue , Mark A. Ratner

Electronic transport in multiwall carbon nanotubes and semiconductor nanowires was compared. In both cases, the non ohmic behavior of the conductance, the so-called zero bias anomaly, shows a temperature dependence that scales with the…

强关联电子 · 物理学 2007-05-23 J. -F. Dayen , X. Hoffer , T. L. Wade , M. Konczykowski , J. -E. Wegrowe

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…

介观与纳米尺度物理 · 物理学 2007-05-23 A. Odintsov , H. Yoshioka

We use a simultaneous flow of ethylene and hydrogen gases to grow single wall carbon nanotubes by chemical vapor deposition. Strong coupling to the gate is inferred from transport measurements for both metallic and semiconducting tubes. At…

介观与纳米尺度物理 · 物理学 2007-05-23 Bakir Babic , Mahdi Iqbal , Christian Schonenberger

We describe a method to fabricate clean suspended single-wall carbon nanotube (SWCNT) transistors hosting a single quantum dot ranging in length from a few 10s of nm down to $\approx$ 3 nm. We first align narrow gold bow-tie junctions on…

介观与纳米尺度物理 · 物理学 2012-08-15 J. O. Island , V. Tayari , S. Yigen , A. C. McRae , A. R. Champagne

High quality single wall carbon nanotube quantum dots have been made showing both metallic and semiconducting behavior. Some of the devices are identified as small band gap semiconducting nanotubes with relatively high broad conductance…

介观与纳米尺度物理 · 物理学 2007-11-14 K. Grove-Rasmussen , H. I. Jørgensen , P. E. Lindelof

We have measured the differential conductance dI/dV of individual multi-wall carbon nanotubes (MWNT) of different lengths. A cross-over from wire-like (long tubes) to dot-like (short tubes) behavior is observed. dI/dV is dominated by random…

介观与纳米尺度物理 · 物理学 2016-08-31 M. R. Buitelaar , A. Bachtold , T. Nussbaumer , M. Iqbal , C. Schoenenberger