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Related papers: Sub-Poissonian Shot Noise In A Diffusive Conductor

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Using the 'drift-diffusion-Langevin' equation, we have quantitatively analyzed the effects of electron energy relaxation via their interaction with phonons, generally in presence of electron-electron interaction, on shot noise in diffusive…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Y. Naveh , D. V. Averin , K. K. Likharev

Using the 'drift-diffusion-Langevin' equation we show that, at least in one geometry, finite-frequency shot noise is of the order of the 'full' shot noise $2eI$ provided the sample is either short or long enough, $L > L_0(\omega)$. Here…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Y. Naveh

We prove the universality of shot-noise in multiterminal diffusive conductors of arbitrary shape and dimension for purely elastic scattering as well as for hot electrons. Using a Boltzmann-Langevin approach we reduce the calculation of…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Eugene V. Sukhorukov , Daniel Loss

Motivated by activities of several experimental groups we investigate electron transport through two coherent, strongly coupled quantum dots ("double quantum dots"), taking into account both intra- and inter-dot Coulomb interactions. The…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Jasmin Aghassi , Axel Thielmann , Matthias H. Hettler , Gerd Schön

The shot noise of the current through a single electron transistor (SET), coupled capacitively with an electronic box, is calculated, using the master equation approach. We show that the noise may be sub-Poissonian or strongly…

Mesoscale and Nanoscale Physics · Physics 2013-06-11 V. Hung Nguyen , V. Lien Nguyen

The magnetization of a ferromagnet (F) driven out of equilibrium injects pure spin current into an adjacent conductor (N). Such F$|$N bilayers have become basic building blocks in a wide variety of spin based devices. We evaluate the shot…

Mesoscale and Nanoscale Physics · Physics 2016-04-14 Akashdeep Kamra , Wolfgang Belzig

Theoretical and experimental work concerned with dynamic fluctuations has developed into a very active and fascinating subfield of mesoscopic physics. We present a review of this development focusing on shot noise in small electric…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 Ya. M. Blanter , M. Buttiker

We obtain the shot noise generating function for a multi-channel quantum conductor in the diffusive limit.

Condensed Matter · Physics 2007-05-23 K A Muttalib , Y Chen

We consider charge transport through a nanoscopic object, e.g. single molecules, short nanotubes, or quantum dots, that is weakly coupled to metallic electrodes. We account for several levels of the molecule/quantum dot with level-dependent…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 A. Thielmann , M. H. Hettler , J. König , G. Schön

We calculate current (shot) noise in a metallic diffusive conductor generated by spin imbalance in the absence of a net electric current. This situation is modeled in an idealized three-terminal setup with two biased ferromagnetic leads…

Mesoscale and Nanoscale Physics · Physics 2017-01-09 V. S. Khrapai , K. E. Nagaev

We show that shot noise can be used for studies of hopping and resonant tunnelling between localised electron states. In hopping via several states, shot noise is seen to be suppressed compared with its classical Poisson value $S_I=2eI$…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 A. K. Savchenko , S. S. Safonov , S. H. Roshko , D. A. Bagrets , O. N. Jouravlev , Y. V. Nazarov , E. H. Linfield , D. A. Ritchie

We argue that the nearly 1/3 suppression of shot noise in nondegenerate diffusive contacts recently obtained by Gonzalez et al. (cond-mat/9803372) is due to the specific choice of the energy-independent elastic scattering time.

Mesoscale and Nanoscale Physics · Physics 2009-10-31 K. E. Nagaev

We work out a theory of shot noise in a special case. This is a noise of the Coulomb drag current excited under the ballistic transport regime in a one-dimensional nanowire by a ballistic non-Ohmic current in a nearby parallel nanowire. We…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 V. L. Gurevich , M. I. Muradov

Current noise provides useful information on correlations important for transport properties of mesoscopic systems. Of particular interest, both experimentally and theoretically, are heterostructures of normal metals and superconductors. We…

Superconductivity · Physics 2017-08-23 W. Belzig , J. Boerlin , C. Bruder , Yu. V. Nazarov

We study noise and transport in multiterminal diffusive conductors. Using a Boltzmann-Langevin equation approach we reduce the calculation of shot-noise correlators to the solution of diffusion equations. Within this approach we prove the…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Eugene V. Sukhorukov , Daniel Loss

We study shot noise for generic quantum dots coupled to two leads and allow for an arbitrary strength of diffractive impurity scattering inside the dots. The ballistic quantum dots possess a mixed classical phase space, where regular and…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 H. -S. Sim , H. Schomerus

A semiclassical theory of the low frequency shot noise in ferromagnet - normal metal systems is formulated. Non-collinear magnetization directions of the ferromagnetic leads, arbitrary junctions and the elastic and inelastic scattering…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Yaroslav Tserkovnyak , Arne Brataas

We present a theory of conductance and noise in generic mesoscopic conductors connected in parallel, and we demonstrate that the additivity of conductance and of shot noise arises as a sole property of the junctions connecting the two (or…

Mesoscale and Nanoscale Physics · Physics 2009-10-30 G. Iannaccone , M. Macucci , B. Pellegrini

Molecular spintroinic device based on a single-molecule magnet is one of the ultimate goals of semiconductor nanofabrication technologies. It is thus necessary to understand the electron transport properties of a single-molecule magnet…

Mesoscale and Nanoscale Physics · Physics 2014-10-15 Hai-Bin Xue , Jiu-Qing Liang , Wu-Ming Liu

The frequency-dependent shot noise in long and narrow mesoscopic diffusive contacts is numerically calculated. The case of arbitrarily strong electron-electron scattering and zero temperature of electrodes is considered. For all voltages,…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 K. E. Nagaev