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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Scattering from rough surfaces ： ウィキペディア英語版 Scattering from rough surfaces Surface roughness scattering or interface roughness scattering is the elastic scattering of a charged particle by an imperfect interface between two different materials. It is an important effect in electronic devices which contain narrow layers, such as field effect transistors and quantum cascade lasers.〔 〕 ==Description== Interface roughness scattering is most noticeable in confined systems, in which the energies for charge carriers are determined by the locations of interfaces. An example of such a system is a quantum well, which may be constructed from a sandwich of different layers of semiconductor. Variations in the thickness of these layers therefore causes the energy of particles to be dependent on their in-plane location in the layer.〔 〕 Although the roughness $\backslash Delta\_z(\backslash mathbf)$ varies in a complicated way on a microscopic scale, it can be considered to exhibit a Gaussian distribution〔 〕 characterised by a height $\backslash Delta$ and a correlation length $\backslash Lambda$ such that :$\backslash langle\backslash Delta\_z(\backslash mathbf)\backslash Delta\_z(\backslash mathbf)\backslash rangle\; =\; \backslash Delta^2\backslash exp\backslash left(-\backslash frac|^2\}\backslash right)$ 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Scattering from rough surfaces」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.