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A nanoelectromechanical weak link composed of a carbon nanotube suspended between two normal electrodes in a gap between two superconducting leads is considered. The nanotube is treated as a movable single-level quantum dot in which the…

Mesoscale and Nanoscale Physics · Physics 2022-06-09 O. M. Bahrova , S. I. Kulinich , L. Y. Gorelik , R. I. Shekhter , H. C. Park

We show that the self-consistent dynamics of both phonons and electrons is the necessary ingredient for the reliable description of the hot phonons generation during electron transport in metallic single-wall carbon nanotubes (SWNTs). We…

Materials Science · Physics 2009-11-11 Michele Lazzeri , Francesco Mauri

We report a combined electronic transport and structural characterization study of small carbon nanotube bundles in field-effect transistors (FET). The atomic structures of the bundles are determined by electron diffraction using an…

Mesoscale and Nanoscale Physics · Physics 2010-10-11 Taekyung Kim , Gunn Kim , Woon Ih Choi , Young-Kyun Kwon , Jian-Min Zuo

We present an overview of current-induced effects in nanoscale conductors with emphasis on their description at the atomic level. In particular, we discuss steady-state current fluctuations, current-induced forces, inelastic scattering and…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Neil Bushong , Massimiliano Di Ventra

Most of the works devoted so far to the electronic band structure of multiwall nanotubes have been restricted to the case where the individual layers have the same helicity. By comparison, much less is known on the electronic properties of…

Condensed Matter · Physics 2009-10-31 Ph. Lambin , V. Meunier , A. Rubio

The structure and transport of electrolytes in nanoscale channels are known to be affected by the electronic properties of the confining walls. This influence is particularly pronounced in quasi-one-dimensional nanotubes, where the high…

Mesoscale and Nanoscale Physics · Physics 2026-05-21 Peter Gispert , Nikita Kavokine

We study the Aharonov-Bohm effect in the optical phenomena of single wall carbon nanotubes (SWCN) and also their chirality dependence. Specially, we consider the natural optical activity as a proper observable and derive it's general…

Materials Science · Physics 2007-05-23 Fei Ye , Bing-Shen Wang , Zhao-Bin Su

It has been suggested that microtubules and other cytoskeletal filaments may act as electrical transmission lines. An electrical circuit model of the microtubule is constructed incorporating features of its cylindrical structure with…

Subcellular Processes · Quantitative Biology 2010-06-28 Holly Freedman , Vahid Rezania , Avner Priel , Eric Carpenter , Sergei Y. Noskovd , Jack A. Tuszynski

In this paper we investigate from first principles the effect of the electron-phonon interaction in two paradigmatic nanostructures: trans-polyacetylene and polyethylene. We found that the strong electron-phonon interaction leads to the…

Materials Science · Physics 2013-04-02 Elena Cannuccia , Andrea Marini

Coupling an electromechanical resonator with carbon-nanotube quantum dots is a significant method to control both the electronic charge and the spin quantum states. By exploiting a novel micro-transfer technique, we fabricate two…

The single-particle and interaction effects on the cohesion, electronic transport, and some magnetic properties of metallic nanocylinders have been studied at finite voltages by using a generalized mean-field electron model. The…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 C. -H. Zhang

We investigate the photoconductance of single-walled carbon nanotube-nanocrystalhybrids. The nanocrystals are bound to the nanotubes via molecular recognition. We find that the photoconductance of the hybrids can be adjusted by the…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 B. Zebli , H. A. Vieyra , I. Carmeli , A. Hartschuh , J. P. Kotthaus , A. W. Holleitner

Simultaneous photoluminescence and photocurrent measurements on individual single-walled carbon nanotubes reveal spontaneous dissociation of excitons into free electron-hole pairs. Correlation of luminescence intensity and photocurrent…

Mesoscale and Nanoscale Physics · Physics 2014-03-19 Y. Kumamoto , M. Yoshida , A. Ishii , A. Yokoyama , T. Shimada , Y. K. Kato

The discovery of topological phases in condensed matter systems has changed the modern conception of phases of matter. The global nature of topological ordering makes these phases robust and hence promising for applications. However, the…

We present a quantitative theory of optical absorption polarized transverse to the tube axes in semiconducting single-walled carbon nanotubes. Transverse optical absorption in semiconducting single-walled carbon nanotubes is to an exciton…

Materials Science · Physics 2009-11-13 Zhendong Wang , Hongbo Zhao , Sumit Mazumdar

We develop a quantum theory of near-field electrodynamical properties of carbon nanotubes and investigate spontaneous decay dynamics of excited states and van der Waals attraction of the ground state of an atomic system close to a…

Mesoscale and Nanoscale Physics · Physics 2017-08-14 Igor V. Bondarev , Philippe Lambin

We calculate the magnetic moment caused by the persistent currents in polygonal carbon nanotube tori by the tight binding model. The polygonal CNT tori are formed by introducing heptagonal and pentagonal defects along the inner hole and…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Ryo Tamura , Mitsuhiro Ikuta , Toru Hirahara , Masaru Tsukada

For a non-superconducting system, the electronic tunneling current through an insulating barrier is calculated, including interaction effects. The exact Hamiltonian of the full system is projected onto the subspaces of the "left" and…

Mesoscale and Nanoscale Physics · Physics 2010-07-09 Kelly R. Patton

We study the effects of the electrostatic interaction produced by charged fullerenes encapsulated in carbon nanotubes, showing that they are able to modify locally the electronic density of states in the hybrid system. In the cases where…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 J. Gonzalez , F. Guinea

Elastic properties of carbon nanotubes and nanoropes are investigated using an empirical force-constant model. For single and multi-wall nanotubes the elastic moduli are shown to be insensitive to details of the structure such as the…

Materials Science · Physics 2009-10-30 J. P. Lu