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We study the effect of surface scattering on transport properties in many-mode conducting channels (electron waveguides). Assuming a strong roughness of the surface profiles, we show that there are two independent control parameters that…

无序系统与神经网络 · 物理学 2009-11-10 F. M. Izrailev , N. M. Makarov , M. Rendon

The effect of random surface roughness on quantum size effect in thin films is discussed. The conductivity of quantized metal films is analyzed for different types of experimentally identified correlation functions of surface…

介观与纳米尺度物理 · 物理学 2007-05-23 I. V. Ponomarev , A. E. Meyerovich

We present a review of some results concerning electronic transport properties of quasicrystals. After a short introduction to the basic concepts of quasiperiodicity, we consider the experimental transport properties of electrical…

凝聚态物理 · 物理学 2009-10-30 S. Roche , Guy Trambly de Laissardiere , D. Mayou

The Shubnikov - de Haas effect in quasi-two-dimensional normal metals is studied. The interlayer conductivity is calculated using the Kubo formula. The electron scattering on short-range is considered in the self-consistent Born…

统计力学 · 物理学 2009-11-07 P. D. Grigoriev

The magnetic dipole absorption cross section of a spherically shaped metal particle was calculated in terms of kinetic approach. The particle considered was placed in the field of a plane electromagnetic wave. The model of boundary…

介观与纳米尺度物理 · 物理学 2014-03-10 I. A. Kuznetsova , M. E. Lebedev , A. A. Yushkanov

Effects of periodic curvature on the the electrical resistivity of corrugated semiconductor films are theoretically considered. The presence of a curvature-induced potential affects the motion of electrons confined to the thin curved film,…

介观与纳米尺度物理 · 物理学 2015-05-14 Shota Ono , Hiroyuki Shima

We report on a theoretical study of quantum charge transport in atomistic models of silicon nanowires with surface roughness-based disorder. Depending on the nanowires features (length, roughness profile) various conduction regimes are…

无序系统与神经网络 · 物理学 2011-05-17 Aurelien Lherbier , Martin Persson , Yann-Michel Niquet , Francois Triozon , Stephan Roche

The augmented space formalism coupled with the recursion method and a tight-binding linear Muffin-tin orbitals basis has been applied to study the effects of roughness on the properties of (001) surfaces of body-centered cubic Fe and…

材料科学 · 物理学 2015-04-30 Priyadarshini Parida , Biplab Ganguli , Abhijit Mookerjee

We consider the electric conductivity in normal metals in presence of a strong magnetic field. It is assumed here that the Fermi surface of a metal has rather complicated form such that different types of quasiclassical electron…

其他凝聚态物理 · 物理学 2018-08-28 A. Ya. Maltsev

Electron transport is studied in surface oxidized single-crystal copper thin films with a thickness of up to 5.6 nm by applying density functional theory and density functional tight binding methods to determine electron transport…

Surface roughness plays a crucial role in the accuracy of indentation experiments used to measure the elastic properties of materials. In this study, we present a computational analysis of how surface roughness, represented explicitly by…

计算物理 · 物理学 2024-10-24 D. F. S. Costa , J. H. M Pontes , W. P. Ferreira , J. S. de Sousa , C. L. N. Oliveira

The impact of surface roughness on conductive heat transfer across nanoscale contacts is investigated by means of scanning thermal microscopy. Silicon surfaces with out-of-plane rms roughness of ~0, 0.5, 4, 7 and 11 nm are scanned both…

We explain the reduction of the thermal conductance below the predicted universal value observed by Schwab et al. in terms of the scattering of thermal phonons off surface roughness using a scalar model for the elastic waves. Our analysis…

介观与纳米尺度物理 · 物理学 2009-10-31 D. H. Santamore , M. C. Cross

The weak-field Hall conductivity in metals is interpreted in terms of the curvature of the Fermi surface in the main part. In the appendix the orbital magnetic-susceptibility and the magneto-conductivity in metals are discussed focusing on…

介观与纳米尺度物理 · 物理学 2024-09-11 Osamu Narikiyo

Ando's model provides a rigorous quantum-mechanical framework for electron-surface roughness scattering, based on the detailed roughness structure. We apply this method to metallic nanowires and improve the model introducing surface…

介观与纳米尺度物理 · 物理学 2016-06-23 Kristof Moors , Bart Sorée , Wim Magnus

Currently, the most common method to calculate transport properties for materials under extreme conditions is based on the phenomenological Kubo-Greenwood method. The results of an inquiry into the justification and context of that model…

统计力学 · 物理学 2018-05-09 James Dufty , Jeffrey Wrighton , Kai Luo , S. B. Trickey

A density-functional-theory based relativistic scattering formalism is used to study charge transport through thin Pt films with room temperature lattice disorder. A Fuchs-Sondheimer specularity coefficient $p \sim 0.5$ is needed to…

介观与纳米尺度物理 · 物理学 2021-12-30 Rohit S. Nair , Max S. Rang , Paul J. Kelly

The Tsuji formula which relates the Fermi-surface curvature and the weak-field Hall conductivity in metals is discussed in Haldane's framework.

其他凝聚态物理 · 物理学 2023-08-25 Osamu Narikiyo

Surface roughness has a huge impact on many important phenomena. The most important property of rough surfaces is the surface roughness power spectrum C(q). We present surface roughness power spectra of many surfaces of practical…

材料科学 · 物理学 2007-05-23 B. N. J. Persson , O. Albohr , U. Tartaglino , A. I. Volokitin , E. Tosatti

We study a new mechanism of wave/electron scattering in multi-mode surface-corrugated waveguides/wires. This mechanism is due to specific square-gradient terms in an effective Hamiltonian describing the surface scattering, that were…

无序系统与神经网络 · 物理学 2009-11-11 F. M. Izrailev , N. M. Makarov , M. Rendon
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