Simulation of parallel angle-resolved X-ray photoelectron spectroscopy data

被引：6
|
作者：
Tasneem, G. [1 ]
Werner, W. S. M. [1 ]
Smekal, W. [1 ]
Powell, C. J. [2 ]
机构：
[1] Vienna Univ Technol, Inst Allgemeine Phys, A-1040 Vienna, Austria
[2] Natl Inst Stand & Technol, Surface & Microanal Sci Div, Gaithersburg, MD 20899 USA
来源：
SURFACE AND INTERFACE ANALYSIS | 2010年 / 42卷 / 6-7期
关键词：
angle-resolved XPS; Theta Probe; anisotropy; elastic scattering; asymmetry parameter; SPECTRA;
D O I：
10.1002/sia.3321
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The effects of elastic scattering and photoionization anisotropy have been studied for angle-resolved XPS (ARXPS) instruments in which the angular distribution is measured for a fixed sample geometry, in contrast to conventional ARXPS in which the sample is tilted for angular variation. The analyzed data were generated by the National Institute of Standards and Technology database for the Simulation of Electron Spectra for Surface Analysis, which provides a simple way to study the influence of the aforementioned effects on compositional depth profile reconstruction. The above mentioned effects have been studied for a 15-angstrom film of SiO2 on Si covered by a 5-angstrom carbon contamination layer. For this sample, the effects of anisotropy were stronger than the effects of elastic scattering. Larger effects of elastic scattering have been observed for HfO2 sample. Copyright (C) 2010 John Wiley & Sons, Ltd.
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页码：1072 / 1075
页数：4
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