Interference of bulk and boundary scattering in films with a quantum size effect
Interference of bulk and boundary scattering in films with a quantum size effect
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具有量子尺寸效应的薄膜中体散射和边界散射的干涉
DOI：
10.1088/0953-8984/12/26/305
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
A. Stepaniants
中科院分区：
文献类型：
--
作者：
A. Meyerovich;A. Stepaniants
对于具有随机粗糙壁的超薄膜，分析了边界和体散射过程之间的干扰。在量子尺寸效应条件下，在可能的情况下，计算随机体积和表面不均匀性散射的有效碰撞和传输弛豫时间。传输和定位结果通过表面波纹的整体传输参数和统计特性来表达。图解计算包括边界散射的二阶效应和批量过程的完全求和。在具有强大体散射的系统中，干扰贡献很大，并且可以与纯壁对传输系数的贡献相当，甚至超过。
The interference between boundary and bulk scattering processes is analysed for ultrathin films with random rough walls. The effective collision and transport relaxation times for scattering by random bulk and surface inhomogeneities are calculated, when possible analytically, in quantum size effect conditions. The transport and localization results are expressed via the bulk transport parameters and statistical characteristics of the surface corrugation. The diagrammatic calculation includes second-order effects for boundary scattering and full summation for bulk processes. The interference contribution is large in systems with robust bulk scattering and can be comparable to, or even exceed, the pure wall contribution to the transport coefficients.