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We demonstrate theoretically that an off-resonant circularly polarized electromagnetic field can induce a persistent current in carbon nanotubes, which corresponds to electron rotation about the nanotube axis. As a consequence, the…

介观与纳米尺度物理 · 物理学 2021-06-24 O. V. Kibis , M. V. Boev , V. M. Kovalev

We derive an effective low-energy theory for metallic (armchair and non-armchair) single-wall nanotubes in the presence of an electric field perpendicular to the nanotube axis, and in the presence of magnetic fields, taking into account…

介观与纳米尺度物理 · 物理学 2011-11-15 Jelena Klinovaja , Manuel J. Schmidt , Bernd Braunecker , Daniel Loss

Carbon nanotubes bridge the molecular and crystalline quantum worlds, and their extraordinary electronic, mechanical and optical properties have attracted enormous attention from a broad scientific community. We review the basic principles…

介观与纳米尺度物理 · 物理学 2010-04-01 F. Kuemmeth , H. O. H. Churchill , P. K. Herring , C. M. Marcus

We investigate the conditions in which superconductivity may develop in ropes of carbon nanotubes. It is shown that the interaction among a large number of metallic nanotubes favors the appearance of a metallic phase in the ropes,…

强关联电子 · 物理学 2009-11-07 J. Gonzalez

The conduction of a single-wall carbon nanotube depends on the pitch. If there are an integral number of carbon hexagons per pitch, then the system is periodic along the tube axis and allows "holes" (, and not "electrons",) to move inside…

介观与纳米尺度物理 · 物理学 2010-03-30 S. Fujita , S. Moon , Y. Takato , James McNabb , S. Godoy

We report the fabrication of a nanoelectromechanical system consisting of a plate rotating around a multiwalled nanotube bearing. The motion is possible thanks to the low intershell friction. Indeed, the nanotube has been engineered so that…

凝聚态物理 · 物理学 2015-06-24 B. Bourlon , D. C. Glattli , A. Bachtold , L. Forro

The objective of the present paper is to investigate the mechanical properties of carbon nanotubes. We use classical molecular dynamics simulation in order to study the effect of external compression, bending and torsion to nanotubes. We…

介观与纳米尺度物理 · 物理学 2014-11-27 N. Stefanakis

The ability to tune the thermal resistance of carbon nanotube mechanical supports from insulating to conducting could permit the next generation of thermal management devices. Here, we demonstrate fabrication techniques for carbon nanotube…

介观与纳米尺度物理 · 物理学 2015-05-19 Kamal H. Baloch , Norvik Voskanian , John Cumings

Scanning probe imaging and manipulation of matter is of crucial importance for nanoscale science and technology. However, its resolution and ability to manipulate matter at the atomic scale is limited by rather poor control over the fine…

介观与纳米尺度物理 · 物理学 2015-03-17 Vasilii I. Artyukhov

In a recent paper Liang {\it et al.} [Nature {\bf 411}, 665 (2001)] showed experimentally, that metallic nanotubes, strongly coupled to external electrodes, may act as coherent molecular waveguides for electronic transport. The experimental…

介观与纳米尺度物理 · 物理学 2009-11-07 S. Krompiewski , J. Martinek , J. Barnas

The thermally activated fracture processes in the carbon backbone of diamond-like carbon nanothreads and the hydrogen desorption from them has been studied by the molecular dynamics method. Specifically, the temperature dependence of the…

介观与纳米尺度物理 · 物理学 2016-11-23 L. A. Openov , A. I. Podlivaev

We report fast readout of the motion of a carbon nanotube mechanical resonator. A close-proximity high electron mobility transistor amplifier is used to increase the bandwidth of the measurement of nanotube displacements from the kHz to the…

介观与纳米尺度物理 · 物理学 2013-10-08 H. B. Meerwaldt , S. R. Johnston , H. S. J. van der Zant , G. A. Steele

We derive and analyze the low-energy theory of superconductivity in carbon nanotube ropes. A rope is modelled as an array of metallic nanotubes, taking into account phonon-mediated as well as Coulomb interactions, and arbitrary Cooper pair…

超导电性 · 物理学 2016-08-31 A. De Martino , R. Egger

We find that ferromagnetism can be induced in carbon nanotubes (CNTs) by introducing hydrogen. Multiwalled CNTs grown inside porous alumina templates contain a large density of defects resulting in significant hydrogen uptake when annealed…

介观与纳米尺度物理 · 物理学 2015-05-18 Adam L. Friedman , Hyunkyung Chun , Yung Joon Jung , Don Heiman , Evan R. Glaser , Latika Menon

We simulate the twist of carbon nanotubes using atomic molecular dynamic simulations. The ultimate twist angle per unit length and the deformation energy are calculated for nanotubes of different geometries. It is found that the big tube is…

介观与纳米尺度物理 · 物理学 2009-09-21 Zhao Wang , Michel Devel , Bernard Dulmet

A pristine suspended carbon nanotube is a near ideal environment to host long-lived quantum states. For this reason, they have been used as the core element of qubits and to explore numerous condensed matter physics phenomena. One of the…

应用物理 · 物理学 2024-01-09 Tim Althuon , Tino Cubaynes , Aljoscha Auer , Christoph Sürgers , Wolfgang Wernsdorfer

Multiwalled carbon nanotubes are shown to be ballistic conductors at room temperature, with mean free paths of the order of tens of microns. These experiments follow and extend the original experiments by Frank et al (Science, 280 1744…

材料科学 · 物理学 2007-05-23 Philippe Poncharal , Claire Berger , Yan Yi , Z. L. Wang , Walt A. de Heer

Carbon nanotubes with their outstanding electrical and mechanical properties are suggested as interconnect material of the future and as switching devices, which could outperform silicon devices. In this paper we will introduce nanotubes,…

材料科学 · 物理学 2007-05-23 F. Kreupl , G. S. Duesberg , A. P. Graham , M. Liebau , E. Unger , R. Seidel , W. Pamler , W. Hoenlein

Multiwalled carbon nanotubes based nanomachines driven by thermal bath are proposed in this Letter. Atomistic simulation shows that intershell translational and rotational motion can be activated at sufficiently high temperature, where the…

统计力学 · 物理学 2007-06-01 Zhiping Xu , Quanshui Zheng

The core of a ferromagnetic vortex domain creates a strong, localized magnetic field which can be manipulated on nanosecond timescales, providing a platform for addressing and controlling individual nitrogen-vacancy center spins in diamond…

介观与纳米尺度物理 · 物理学 2016-06-29 Michael S. Wolf , Robert Badea , Jesse Berezovsky