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相关论文: Bound states of tunneling electrons in molecular w…

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A model quantum wire embedded in a matrix permeable to electron waves is investigated in terms of electronic states. The wire is assumed to have a 1D crystal structure. Through electron waves propagating in its surroundings, lateral modes…

介观与纳米尺度物理 · 物理学 2009-11-11 Jaroslaw Klos

We present a theory of tunneling and resonant transitions in one-dimensional molecular systems which is based on Green's function theory of electron sub-barrier scattering off the structural units (or functional groups) of a molecular…

其他凝聚态物理 · 物理学 2007-05-23 I. I. Oleynik , M. A. Kozhushner , V. S. Posvyanskii

We present a self-consistent method for the evaluation of the electronic current flowing through a multi-terminal molecular wire. The method is based on Buttiker- Landauer theory which relates the current to one-electron scattering…

介观与纳米尺度物理 · 物理学 2009-10-31 Eldon G. Emberly , George Kirczenow

We study tunneling of electrons into and between interacting wires in the spin-incoherent regime subject to a magnetic field. The tunneling currents follow power laws of the applied voltage with exponents that depend on whether the electron…

介观与纳米尺度物理 · 物理学 2009-11-11 M. Kindermann , P. W. Brouwer

We show that quasi-bound electron states are formed in a quantum wire as a result of electron backscattering in the transition regions between the wire and the electron reservoirs, to which the wire is coupled. The backscattering mechanism…

介观与纳米尺度物理 · 物理学 2007-05-23 B S Shchamkhalova , V A Sablikov

We derive an explicit expression for the quantum conductivity of a molecular wire containing a redox center, which is embedded in an electrochemical environment. The redox center interacts with the solvent, and the average over the solvent…

介观与纳米尺度物理 · 物理学 2015-05-14 A. V. B. Cruz , A. K. Mishra , W. Schmickler

We develop a theory of tunneling spectroscopy of interacting electrons in a non-equilibrium quantum wire coupled to reservoirs. The problem is modelled as an out-of-equilibrium Luttinger liquid with spatially dependent interaction. The…

介观与纳米尺度物理 · 物理学 2009-07-09 D. B. Gutman , Yuval Gefen , A. D. Mirlin

The electron-electron scattering increases the resistance of ballistic many-mode channels whose width is smaller than their length. We show that this increase saturates in the limit of infinitely long channels. Because the mechanisms of…

介观与纳米尺度物理 · 物理学 2018-04-12 K. E. Nagaev

Theory of electron-acoustic single phonon scattering has been reconsidered. It is assumed that the non-degenerate semiconductor has a spherical parabolic band structure. In the basis of the reconsideration there is a phenomenon of the…

材料科学 · 物理学 2015-06-15 S. V. Melkonyan , A. L. Harutyunyan , T. A. Zalinyan

We present a technique to calculate the transport properties through one-dimensional models of molecular wires. The calculations include inelastic electron scattering due to electron-lattice interaction. The coupling between the electron…

凝聚态物理 · 物理学 2009-10-31 H. Ness , S. A. Shevlin , A. J. Fisher

We study a set of crossed 1D systems, which are coupled with each other via tunnelling at the crossings. We begin with the simplest case with no electron-electron interactions and find that besides the expected level splitting, bound states…

介观与纳米尺度物理 · 物理学 2013-05-29 D. Makogon , N. de Jeu , C. Morais Smith

Electronic transport properties of the disordered quantum wires are considered. The disorder is introduced via impurities (point scatterers), distributed uniformly over the two-dimensional strip, which represents a model quantum wire.…

介观与纳米尺度物理 · 物理学 2014-12-31 Robert Gębarowski

The total energy of a quasi-one-dimensional electron system is calculated using density functional theory. It is shown that spontaneous ferromagnetic state in quantum wire occurs at low one-dimensional electron density. The critical…

介观与纳米尺度物理 · 物理学 2013-01-14 A. A. Vasilchenko

A microscopic picture of electron-electron pair scattering in single mode quantum wires is introduced which includes electron spin. A new source of `excess' noise for hot carriers is presented. We show that zero magnetic field `spin'…

凝聚态物理 · 物理学 2009-10-22 Gerhard Fasol , Hiroyuki Sakaki

We study electron transport properties of some molecular wires and a unconventional disordered thin film within the tight-binding framework using Green's function technique. We show that electron transport is significantly affected by…

介观与纳米尺度物理 · 物理学 2009-06-29 Santanu K. Maiti

We calculate the low-energy tunneling density of states $\nu(\epsilon, T)$ of an $N$-channel disordered wire, taking into account the electron-electron interaction non-perturbatively. The finite scattering rate $1/\tau$ results in a…

介观与纳米尺度物理 · 物理学 2007-05-23 E. G. Mishchenko , A. V. Andreev , L. I. Glazman

The influence of the charging effects on the transport characteristics of a molecular wire bridging two metallic electrodes in the limit of weak contacts is studied by generalized Breit-Wigner formula. Molecule is modeled as a quantum dot…

化学物理 · 物理学 2009-11-10 Kamil Walczak

In this paper the scattering rates of electrons in thin free standing GaAs quantum wires in the electric quantum limit are calculated self-consistently taking into account the collisional broadening caused by scattering processes. The…

介观与纳米尺度物理 · 物理学 2007-05-23 Dmitry Pozdnyakov , Vadim Galenchik , Andrei Borzdov

We consider the problem of electron transport across a quasi-one-dimensional disordered multiply-scattering medium, and study the statistical properties of the electron density inside the system. In the physical setup that we contemplate,…

无序系统与神经网络 · 物理学 2020-01-29 Pier A. Mello , Miztli Yépez

Exact one-electron eigenstates in finite parts of 1D periodic and Fibonacci chains of attractive and repulsive delta potentials are computed and analyzed. Bloch and bound state boundary conditions are related in terms of transfer matrices.…

数学物理 · 物理学 2007-05-23 Peter Kramer , Tobias Kramer
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