نتایج جستجو برای: mesoscopic
تعداد نتایج: 8204 فیلتر نتایج به سال:
Computer simulations and in particular mesoscopic simulation techniques such as the dissipative particle dynamics (DPD) technique, enable researchers to study the complexities of soft material and polymeric systems by performing in silico experimentations alongside in vivo experiments. In addition, these mesoscopic simulations allow scientists and engineers to characterize and optimize the actu...
Electron transport in mesoscopic conductors has traditionally involved investigations of the mean current and the fluctuations of the current. A complementary view on charge transport is provided by the distribution of waiting times between charge carriers, but a proper theoretical framework for coherent electronic systems has so far been lacking. Here we develop a quantum theory of electron wa...
We make a distinction between the spectroscopic and the mesoscopic conductance of a closed ring. We show that the latter is not simply related to the Landauer conductance of the corresponding open system. A new ingredient in the theory is related to the non-universal structure of the perturbation matrix which is generic for quantum chaotic systems. These structures may create bottlenecks that s...
Experimental Section: Precursor preparation TiO2 mesoscopic film was prepared by doctor-blading of commercially available anatase paste (Dyesol, 18NR-T) on cleaned FTO glass, then slowly heated up to 450°C and kept for 30 min to form the porous mesoscopic film. After, there are three steps for the quaternary precursor to be insitu deposited and coated onto the mesoscopic TiO2 film: 1. 100 mL 0....
Mesoscopic pointlike defects are a class of extended defects with surfaces of minimal curvature that span in size from the point-defect limit ~multivacancy, antisite, impurity complex, etc.! to macroscopic inclusions or voids within a semiconductor host. The structural, electronic, and optical properties of these defects evolve continuously from the quantum-mechanical limit to the classical lim...
In this paper, a numerical approach for permeability determination at the mesoscopic and microscopic scales is proposed. In an eulerian framework, the computational domain (corresponding to the elementary cell) is composed of one single mesh, where the interface between the fibres (microscopic scale) or the yarns composing the fabric (mesoscopic scale) and fluid is captured through a level set ...
nanostructures with three-dimensional confinement (see Figure 1). They have received much attention from researchers in the field of condensed matter over the last two decades [1-5], mostly due to their particular magnetic response. When a QR charged with an excess electron is pierced by a magnetic field perpendicular to the ring plane, the Aharonov-Bohm (AB) [6, 7] effect gives rise to persist...
Mesoscopic systems - small electric circuits working in quantum regime - offer us a unique experimental stage to explorer quantum transport in a tunable and precise way. The purpose of this Review is to show how they can contribute to statistical physics. We introduce the significance of fluctuation, or equivalently noise, as noise measurement enables us to address the fundamental aspects of a ...
We make a distinction between the spectroscopic and the mesoscopic conductance of closed systems. We show that the latter is not simply related to the Landauer conductance of the corresponding open system. A new ingredient in the theory is related to the non-universal structure of the perturbation matrix which is generic for quantum chaotic systems. These structures may created bottlenecks that...
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