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A simple method to disperse individual single walled carbon nanotubes (SWCNT ) on an atomically flat substrate is presented. Proper tuning of ac modes of atomic force microscopes(AFM) is discussed. This is needed to discriminate between…

Materials Science · Physics 2007-05-23 Richard Piner , Rodney S. Ruoff

We explore the low-frequency noise of interacting electrons in a one-dimensional structure (quantum wire or interaction-coupled edge states) with counterpropagating modes, assuming a single channel in each direction. The system is driven…

Strongly Correlated Electrons · Physics 2015-10-20 J. K. Kühne , I. V. Protopopov , Y. Oreg , A. D. Mirlin

The thermal transport properties of single-wall carbon nanotubes (SWCNTs) are re-investigated using the iterative solution of the Boltzmann transport equation by including four-phonon scattering. Using only three-phonon scattering, the…

Materials Science · Physics 2023-11-07 Ankit Jain

We report an experimental study on the shot noise as well as the dc transport properties of a quantum point contact (QPC) whose conductance anomaly can be tuned electrostatically by the gate electrodes. By controlling the single QPC so that…

Mesoscale and Nanoscale Physics · Physics 2009-06-08 Shuji Nakamura , Masayuki Hashisaka , Yoshiaki Yamauchi , Shinya Kasai , Teruo Ono , Kensuke Kobayashi

We study a model of two interacting levels that are attached to two electronic leads, where one of the levels is attached very weakly to the leads. We use rate equations method to calculate the average current and the noise of electrons…

Mesoscale and Nanoscale Physics · Physics 2012-02-02 Assaf Carmi , Yuval Oreg

Here we present a theoretical analysis of the effect of inelastic electron scattering on spin-dependent transport characteristics (conductance, current-voltage dependence, magnetoresistance, shot noise spectrum, Fano factor) for magnetic…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Kamil Walczak

The dynamics of the one-dimensional array of the single-walled carbon nanotubes, which interact by van der Waals forces, is considered. The molecular dynamics simulation shows that both the mutual displacements of the nanotubes and the…

Mesoscale and Nanoscale Physics · Physics 2022-09-07 Valeri V. Smirnov

Recently, ultra-small-diameter Single Wall Nano Tubes with diameter of $ \sim 0.4 nm$ have been produced and many unusual properties were observed, such as superconductivity, leading to a transition temperature $T_c\sim 15^oK$, much larger…

Superconductivity · Physics 2009-11-11 S. Bellucci , M. Cini , P. Onorato , E. Perfetto

We report on direct measurements of the electronic shot noise of a quantum point contact at frequencies nu in the range 4-8 GHz. The very small energy scale used ensures energy independent transmissions of the few transmitted electronic…

Mesoscale and Nanoscale Physics · Physics 2008-04-22 Eva Zakka-Bajjani , Julien Segala , Fabien Portier , Patrice Roche , Christian Glattli , Antonella Cavanna , Yong Jin

The photocurrent properties of freely suspended single-walled carbon nanotubes (CNTs) are investigated as a function of uniaxial strain. We observe that at low strain, the photocurrent signal of the CNTs increases for increasing strain,…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 S. M. Kaniber , L. Song , J. P. Kotthaus , A. W. Holleitner

The spontaneous decay of an excited state of an emitter placed in the vicinity of a metallic single-wall carbon nanotube (SWNT) was examined theoretically. The emitter-SWNT coupling strongly depends on the position of the emitter relative…

Mesoscale and Nanoscale Physics · Physics 2021-07-02 A. M. Nemilentsau , G. Ya. Slepyan , S. A. Maksimenko , A. Lakhtakia , S. V. Rotkin

We investigate the behavior of the shot-noise power through quantum mechanical cavities in the semiclassical limit of small electronic wavelength. In the absence of impurity scattering, the Fano factor $F$, giving the noise to current…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Philippe Jacquod , Robert S. Whitney

We investigate linear and nonlinear transport in interacting single wall carbon nanotubes (SWCNTs) that are weakly attached to ferromagnetic leads. For the reduced density matrix of a SWCNT quantum dot, equations of motion which account for…

Mesoscale and Nanoscale Physics · Physics 2007-11-12 Sonja Koller , Leonhard Mayrhofer , Milena Grifoni

We have used Monte Carlo simulation to calculate the shot noise intensity $S_I(\omega)$ at 2D hopping using two models: a slanted lattice of localized sites with equal energies and a set of localized sites with random positions and…

Disordered Systems and Neural Networks · Physics 2009-10-31 Viktor A. Sverdlov , Alexander N. Korotkov , Konstantin K. Likharev

We present low-temperature electron transport measurements on a single-wall carbon nanotube quantum dot exhibiting Kondo resonances at low temperature. Contrary to the usual behavior for the spin-1/2 Kondo effect we find that the…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 J. Nygard , W. F. Koehl , N. Mason , L. DiCarlo , C. M. Marcus

Interactions between atoms of bound single-walled carbon nanotubes (SWNTs) are known to cause measurable distortion to the tube's original circular cross-section frame. High-resolution transmission electron microscope (TEM) investigation…

Materials Science · Physics 2007-05-23 Z. R. Abrams , Y. Hanein

We have investigated excitons in highly-aligned single-walled carbon nanotubes (SWCNTs) through optical spectroscopy at low temperature (1.5 K) and high magnetic fields ($\textbf{\textit{B}}$) up to 55 T. SWCNT/polyacrylic acid films were…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 J. Shaver , S. A. Crooker , J. A. Fagan , E. K. Hobbie , N. Ubrig , O. Portugall , V. Perebeinos , Ph. Avouris , J. Kono

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…

Mathematical Physics · Physics 2018-11-30 Morten Rasmussen , Benjamin Ricaud , Baptiste Savoie

We report on coupling between semiconducting single-wall carbon nanotubes (s-SWNT) photoluminescence and silicon microring resonators. Polyfluorene extracted s-SWNT deposited on such resonators exhibit sharp emission peaks, due to…

Optics · Physics 2015-08-06 Adrien Noury , Xavier Le Roux , Laurent Vivien , Nicolas Izard

We present a theoretical study of the influence of dephasing on shot noise in an electronic Mach-Zehnder interferometer. In contrast to phenomenological approaches, we employ a microscopic model where dephasing is induced by the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Florian Marquardt , C. Bruder
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