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相关论文: Transverse field-induced effects in carbon nanotub…

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We study the interference of interacting electrons in toroidal single-wall carbon nanotubes coupled to metallic electrodes by tunnel junctions. The dc conductance shows resonant features as a function of the gate voltage and the magnetic…

介观与纳米尺度物理 · 物理学 2009-10-31 Joerg Rollbuehler , Arkadi A. Odintsov

High frequency conductivity of hot electrons in an undoped single walled achiral carbon nanotubes (CNTs) under the influence of ac-dc driven fields is considered. We investigated semiclassically by solving the Boltzmann's transport equation…

介观与纳米尺度物理 · 物理学 2016-04-20 M. Amekpewu , S. Y. Mensah , R. Musah , N. G. Mensah , S. S. Abukari , K. A. Dompreh

We discuss magnetotransport measurements on individual single-wall carbon nanotubes with low contact resistance, performed as a function of temperature and gate voltage. We find that the application of a magnetic field perpendicular to the…

介观与纳米尺度物理 · 物理学 2007-05-23 H. T. Man , A. F. Morpurgo

Carbon nanotubes provide a unique system to study one-dimensional quantization phenomena. Scanning tunneling microscopy is used to observe the electronic wave functions that correspond to quantized energy levels in short metallic carbon…

We study the two-electron eigenspectrum of a carbon-nanotube double quantum dot with spin-orbit coupling. Exact calculation are combined with a simple model to provide an intuitive and accurate description of single-particle and interaction…

介观与纳米尺度物理 · 物理学 2015-05-19 J. von Stecher , B. Wunsch , M. Lukin , E. Demler , A. M. Rey

Efficient and controlled charge transport in networks of semiconducting single-walled carbon nanotubes is the basis for their application in electronic devices, especially in field-effect transistors and thermoelectrics. The recent advances…

应用物理 · 物理学 2021-11-19 Nicolas F. Zorn , Jana Zaumseil

When a carbon nanotube is truncated with a certain type of edges, boundary states localized near the edges appear at the fermi level. Starting from lattice models, low energy effective theories are constructed which describe electron…

介观与纳米尺度物理 · 物理学 2009-11-07 Shinsei Ryu , Yasuhiro Hatsugai

This work represents the first electro-thermal study of metallic single-wall carbon nanotubes (SWNTs) for interconnect applications. Experimental data and careful modeling reveal that self-heating is of significance in short (1 < L < 10 um)…

介观与纳米尺度物理 · 物理学 2016-11-15 Eric Pop , David Mann , John Reifenberg , Kenneth Goodson , Hongjie Dai

We report results on the rectification properties of a carbon nanotube (CNT) ring transistor, contacted by CNT leads, whose novel features have been recently communicated by Watanabe et al. [Appl. Phys. Lett. 78, 2928 (2001)]. This paper…

介观与纳米尺度物理 · 物理学 2007-05-23 G. Cuniberti , J. Yi , M. Porto

We review the theoretical description of spin-orbit scattering and electron spin resonance in carbon nanotubes. Particular emphasis is laid on the effects of electron-electron interactions. The spin-orbit coupling is derived, and the…

强关联电子 · 物理学 2012-09-27 A. De Martino , R. Egger , F. Murphy-Armando , K. Hallberg

The field emission properties of ion irradiated multiwalled carbon nanotubes (MWCNTs) and doublewalled carbon nanotubes (DWCNTs) have been studied. The carbon nanotubes synthesized by a chemical vapor deposition method were irradiated by…

材料科学 · 物理学 2014-04-28 P. M. Koinkar , A. Kumar , D. K. Avasthi , M. A. More , Ri-ichi Murakami

We use conducting-tip atomic force microscopy (AFM) to measure local electronic properties of single wall carbon nanotube (SWNT) circuits on insulating substrates. When a voltage is applied to the tip and AFM feedback is used to position…

介观与纳米尺度物理 · 物理学 2016-08-15 M. Freitag , M. Radosavljević , W. Clauss , A. T. Johnson

We use the robust nearest-neighbour tight-binding approximation to study on the same footing interband dipole transitions in narrow-bandgap carbon nanotubes and graphene nanoribbons. It is demonstrated that curvature effects in metallic…

介观与纳米尺度物理 · 物理学 2019-04-30 R. R. Hartmann , V. A. Saroka , M. E. Portnoi

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

Applications based on Single Walled Carbon Nanotube (SWNT) are good example of the great need to continuously develop metrology methods in the field of nanotechnology. Contact and interface properties are key parameters that determine the…

介观与纳米尺度物理 · 物理学 2012-01-23 Julien Buchoux , Ludovic Bellon , Sophie Marsaudon , Jean-Pierre Aimé

Recently, Coulomb blockade physics was observed at room temperature in a carbon nanotube single-electron transistor (H. W. Ch. Postma, et. al., Science 293, 76 (2001)). In this work, we suggest that these devices may be promising for…

强关联电子 · 物理学 2007-05-23 Eugene H. Kim , German Sierra , C. Kallin

The electronic properties of carbon nanotubes are investigated in the presence of disorder and a magnetic field parallel or perpendicular to the nanotube axis. In the parallel field geometry, the $\phi_{0}(=hc/e)$-periodic metal-insulator…

凝聚态物理 · 物理学 2009-10-31 S. Roche , G. Dresselhaus , M. S. Dresselhaus , R. Saito

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 a novel phenomenon in carbon nanotube (CNT) based devices, the transphonon effects, which resemble the transonic effects in aerodynamics. It is caused by dissipative resonance of nanotube phonons similar to the radial breathing…

材料科学 · 物理学 2009-03-12 Zhiping Xu , Quanshui Zheng , Qing Jiang , Chi-Chiu Ma , Yang Zhao , Guanhua Chen , Huajian Gao , Gexue Ren

Persistent currents driven by a static magnetic flux parallel to the carbon nanotube axis are investigated. Owing to the hexagonal symmetry of graphene the Fermi contour expected for a 2D-lattice reduces to two points. However the electron…

介观与纳米尺度物理 · 物理学 2009-11-07 M. Szopa , M. Marganska , E. Zipper