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相关论文: Coherent transport in disordered metals: zero dime…

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We calculate the correlator of the local density of states <\rho_{E}(r_1)\rho_{E+\omega}(r_2)> in quasi-one-dimensional disordered wires in a magnetic field, assuming that |r_1-r_2| is much smaller than the localization length. This amounts…

介观与纳米尺度物理 · 物理学 2009-11-11 M. A. Skvortsov , P. M. Ostrovsky

We study thermal conductivity in the disordered two-dimensional electron liquid in the presence of long-range Coulomb interactions. We describe a microscopic analysis of the problem using as a starting point the partition function defined…

介观与纳米尺度物理 · 物理学 2016-06-22 G. Schwiete , A. M. Finkel'stein

We numerically investigate the transport properties of disordered interacting electrons in three dimensions in the metallic as well as in the insulating phases. The disordered many-particle problem is modeled by the quantum Coulomb glass…

介观与纳米尺度物理 · 物理学 2016-04-20 Thomas Vojta , Frank Epperlein

We theoretically investigate the effect of inter-molecular Coulomb interactions on transport through molecular monolayers (or other devices based on a large number of nanoscale conductors connected in parallel). Due to the interactions, the…

介观与纳米尺度物理 · 物理学 2013-04-09 Martin Leijnse

The combined influence of disorder and interactions on the transport properties of electrons in one dimension is investigated. The numerical simulations are carried out by means of the Hartree-Fock-based diagonalization (HFD), a very…

介观与纳米尺度物理 · 物理学 2015-06-25 Michael Schreiber , Frank Epperlein , Thomas Vojta

This lecture is a tutorial introduction to coherent effects in disordered electronic systems. Avoiding technicalities as most as possible, I present some personal points of view to describe well-known signatures of phase coherence like weak…

介观与纳米尺度物理 · 物理学 2007-05-23 Gilles Montambaux

Transport properties of a single-channel Luttinger liquid impinging on a barrier have been studied for $g=1/2 - \epsilon$, where $g$ is the dimensionless interaction constant and $|\epsilon| \ll 1$. The relevant diagrams contributing to the…

凝聚态物理 · 物理学 2007-05-23 R. Egger , M. Sassetti , U. Weiss

We study Coulomb drag between two parallel disordered mesoscopic 1D-wires. By numerical ensemble averaging we calculate the statistical properties of the transconductance G_21 including its distribution. For wires with mutually uncorrelated…

介观与纳米尺度物理 · 物理学 2007-05-23 Niels Asger Mortensen , Karsten Flensberg , Antti-Pekka Jauho

In this review, we provide an account of the recent progress in understanding electronic transport in disordered graphene systems. Starting from a theoretical description that emphasizes the role played by band structure properties and…

介观与纳米尺度物理 · 物理学 2015-05-19 Eduardo R. Mucciolo , Caio H. Lewenkopf

We calculate the persistent current of 1D rings of spinless fermions with short-range interactions on a lattice with up to 20 sites, and in the presence of disorder, for various band fillings. We find that {\it both} disorder and…

凝聚态物理 · 物理学 2009-10-22 G. Bouzerar , D. Poilblanc , G. Montambaux

We present electron transport measurements on lithographically defined and etched graphene nanoconstrictions with different aspect ratios including different lengths (L) and widths (W). A roughly length-independent disorder induced…

介观与纳米尺度物理 · 物理学 2011-04-13 B. Terrés , J. Dauber , C. Volk , S. Trellenkamp , U. Wichmann , C. Stampfer

The conductance of one-dimensional nano-wires of interacting electrons connected to non-interacting leads is calculated in the linear response regime. Two different approaches are used: a many-body Green function technique and a relation to…

介观与纳米尺度物理 · 物理学 2009-11-07 V. Meden , U. Schollwoeck

We present a detailed numerical study of the electronic transport properties of bilayer and trilayer graphene within a framework of single-electron tight-binding model. Various types of disorder are considered, such as resonant (hydrogen)…

介观与纳米尺度物理 · 物理学 2011-01-04 Shengjun Yuan , Hans De Raedt , Mikhail I. Katsnelson

Weyl semimetal is a solid material with isolated touching points between conduction and valence bands in its Brillouin zone -- Weyl points. Low energy excitations near these points exhibit a linear dispersion and act as relativistic…

无序系统与神经网络 · 物理学 2024-01-24 M. E. Ismagambetov , P. M. Ostrovsky

Nonlinear transport through a quantum dot is studied in the limit of weak and strong intra-dot Coulomb interaction. For the latter regime the nonequilibrium self-consistent mean field equations for energies and spectral weights of…

强关联电子 · 物理学 2007-05-23 I. Sandalov , R. G. Nazmitdinov

We investigate the effect of electron-electron interactions on the conductance of quasi one-dimensional systems without potential scattering. For a finite temperature or system length, the short-range interaction is not renormalized to 0,…

介观与纳米尺度物理 · 物理学 2009-09-25 Arisato Kawabata

Doped organic semiconductors are critical to emerging device applications, including thermoelectrics, bioelectronics, and neuromorphic computing devices. It is commonly assumed that low conductivities in these materials result primarily…

We calculate the distribution of the conductance P(g) for a quasi-one-dimensional system in the metal to insulator crossover regime, based on a recent analytical method valid for all strengths of disorder. We show the evolution of P(g) as a…

介观与纳米尺度物理 · 物理学 2009-11-07 Victor A. Gopar , K. A. Muttalib , P. Wölfle

The influence of Coulomb interaction on the electron transport through molecular wires is studied in the regime of incoherent tunneling. In the limit of strong Coulomb repulsion, the current for spinless electrons is determined. It is shown…

化学物理 · 物理学 2007-05-23 Jörg Lehmann , Gert-Ludwig Ingold , Peter Hänggi

We investigate the transport of active matter system in the presence of a disordered square lattice of half-circles, which is built by removing a fraction of them from the initial full lattice. We consider no external field. We observe a…

软凝聚态物质 · 物理学 2020-02-12 A. D. Borba , J. L. C. Domingos , E. C. B. Moraes , F. Q. Potiguar , W. P. Ferreira
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