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We study contact effects on electron transport across a molecular wire sandwiched between two semi-infinite (carbon) nanotube leads as a model for nanoelectrodes. Employing the Landauer scattering matrix approach we find that the…

介观与纳米尺度物理 · 物理学 2009-10-31 G. Fagas , G. Cuniberti , K. Richter

A nanodevice consisting of a conductive cylinder in an axial magnetic field with one-dimensional wires attached to its lateral surface is considered. An explicit form for transmission and reflection coefficients of the system as a function…

介观与纳米尺度物理 · 物理学 2007-05-23 V. A. Margulis , M. A. Pyataev

The electron transport through a quantum sphere with three one-dimensional wires attached to it is investigated. An explicit form for the transmission coefficient as a function of the electron energy is found from the first principles. The…

介观与纳米尺度物理 · 物理学 2007-05-23 V. A. Margulis , M. A. Pyataev

The charge transport properties of single superconducting tin nanowires, encapsulated by multiwalled carbon nanotubes have been investigated by multi-probe measurements. The multiwalled carbon nanotube protects the tin nanowire from…

Here, we present theoretical analysis of electron transport in polyaniline based (PANi) nanofibers assuming the metalic state of the material. To build up this theory we treat conducting polymers as a special kind of granular metals, and we…

软凝聚态物质 · 物理学 2012-08-27 Natalya A. Zimbovskaya , Alan T. Johnson, , Nicholas J. Pinto

We study one-electron tunneling through atomic-scale one-dimensional wires in the presence of coherent electron-phonon (e-ph) coupling. We use a full quantum model for the e-ph interaction within the wire with open boundary conditions. We…

凝聚态物理 · 物理学 2009-11-07 H. Ness , A. J. Fisher

We performed studies of coherent electronic transport through a single walled carbon nanotube. In the calculations multiple scattering on the contacts and interference processes were taken into account. Conductance is a composition of…

材料科学 · 物理学 2016-08-31 W. Iwo Babiaczyk , Bogdan. R. Bulka

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 electrical conductivity of a macroscopic assembly of nanomaterials is determined through a complex interplay of electronic transport within and between constituent nano-objects. Phonons play dual roles in this situation: their increased…

介观与纳米尺度物理 · 物理学 2023-05-10 Davoud Adinehloo , Weilu Gao , Ali Mojibpour , Junichiro Kono , Vasili Perebeinos

Using low-resistance electrical contacts, we have measured the intrinsic high-field transport properties of metallic single-wall carbon nanotubes. Individual nanotubes appear to be able to carry currents with a density exceeding 10^9…

介观与纳米尺度物理 · 物理学 2009-10-31 Zhen Yao , Charles L. Kane , Cees Dekker

We present an atomistic self-consistent study of the electronic and transport properties of semiconducting carbon nanotube in contact with metal electrodes of different work functions, which shows simultaneous electron and hole doping…

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

Fullerene functionalized carbon nanotubes -- NanoBuds -- form a novel class of hybrid carbon materials, which possesses many advantageous properties as compared to the pristine components. Here, we report a theoretical study of the…

介观与纳米尺度物理 · 物理学 2009-05-08 J. A. Furst , J. Hashemi , T. Markussen , M. Brandbyge , A. P. Jauho , R. M. Nieminen

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

We investigate the properties of conduction electrons in single-walled armchair carbon nanotubes in the presence of mutually orthogonal electric and magnetic fields transverse to the tube's axis. We find that the fields give rise to an…

介观与纳米尺度物理 · 物理学 2015-05-14 Wade DeGottardi , Tzu-Chieh Wei , Victoria Fernandez , Smitha Vishveshwara

Electrical transport through single-walled carbon nanotubes (SWNTs) is investigated by using the nearest-neighbor tight-binding model coupled with two electron reservoirs. When the SWNT-electrode coupling is not axially symmetric,…

介观与纳米尺度物理 · 物理学 2007-05-23 Junko Takahashi , Shuichi Tasaki

Carbon nanotubes (CNT) have a very large application potential in the rapid developing field of molecular electronics. Infinite single-wall metallic CNTs have theoretically a conductance of 4e2/h because of the two electronic bands crossing…

介观与纳米尺度物理 · 物理学 2007-05-23 N. Ranjan , R. Gutierrez-Laliga , S. Krompiewski , G. Cuniberti

The quantum dynamics of carriers bound to helical tube surfaces is investigated in a thin-layer quantization scheme. By numerically solving the open-boundary Schr$\ddot{\rm o}$dinger equation in curvilinear coordinates, geometric effect on…

介观与纳米尺度物理 · 物理学 2016-07-11 Guo-Hua Liang , Yong-Long Wang , Long Du , Hua Jiang , Guang-Zhen Kang , Hong-Shi Zong

We present an electrically driven plasmonic device consisting of a gold nanoparticle trapped in a gap between two electrodes. The tunneling current in the device generates plasmons, which decay radiatively. The emitted spectrum extends up…

介观与纳米尺度物理 · 物理学 2016-01-21 Yuval Vardi , Eyal Cohen-Hoshen , Guy Shalem , Israel Bar-Joseph

We investigate the electron transport in multiply connected metallic carbon nanotubes within the Landauer-B\"{u}ttiker formalism. Quasibound states coupled to the incident $\pi^{*}$ states give rise to energy levels of different widths…

介观与纳米尺度物理 · 物理学 2009-11-10 Gunn Kim , Sang Bong Lee , Tae-Suk Kim , Jisoon Ihm

The attachment of semiconducting nanoparticles to carbon nanotubes is one of the most challenging subjects in nanotechnology. Successful high coverage attachment and control over the charge transfer mechanism and photo-current generation…

材料科学 · 物理学 2015-07-20 Alina Chanaewa , Beatriz H. Juarez , Horst Weller , Christian Klinke
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