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首页> 外文期刊>Physica status solidi, B. Basic research >Calculation of reflectance anisotropy for semiconductor surface exploration
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Calculation of reflectance anisotropy for semiconductor surface exploration

机译:半导体表面探测的反射率各向异性的计算

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摘要

Reflectance anisotropy spectroscopy (RAS) is exquisitely sensitive to probe surfaces, with many potential applications in determining surface geometries or monitoring material growth. Thanks to recent computational and methodological progress it has now become possible to calculate surface optical spectra accurately and with true predictive power. Here I review briefly the simulation of RAS spectra and discuss recent methodological advances, which allow for the modelling of self-energy, excitonic and local-field effects in large and complex systems. Numerical results for semiconductor surfaces in comparison to measured data are used to illustrate the potential and limits of the different levels of theory. (c) 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
机译:反射各向异性光谱(RAS)对探针表面非常敏感,在确定表面几何形状或监视材料生长方面具有许多潜在的应用。得益于最近的计算和方法学进展,现在已经可以精确地并具有真正的预测能力来计算表面光谱。在这里,我简要回顾一下RAS光谱的仿真,并讨论了最新的方法学进展,这些进展为大型和复杂系统中的自能量,激子和局部场效应建模提供了可能。与测量数据相比,半导体表面的数值结果用于说明不同理论水平的潜力和局限性。 (c)2005 WILEY-VCH Verlag GmbH&Co. KGaA,Weinheim。

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