Practical Aspects of Removing the Effects of Elastic and Thermal Diffuse Scattering from Spectroscopic Data for Single Crystals
Practical Aspects of Removing the Effects of Elastic and Thermal Diffuse Scattering from Spectroscopic Data for Single Crystals
复制标题
从单晶光谱数据中消除弹性和热扩散散射影响的实际问题
DOI:
10.1017/s1431927614000804
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发表时间:
2014
影响因子:
2.8
通讯作者:
L. J.
中科院分区:
文献类型:
--
作者:
Lugg;N. R.; Melissa;N. J.; Findlay;S. D.; Allen;L. J.
A method to remove the effects of elastic and thermal diffuse scattering (TDS) of the incident electron probe from electron energy-loss and energy-dispersive X-ray spectroscopy data for atomically resolved spectrum images of single crystals of known thickness is presented. By calculating the distribution of the probe within a specimen of known structure, it is possible to deconvolve the channeling of the probe and TDS from experimental data by reformulating the inelastic cross-section as an inverse problem. In electron energy-loss spectroscopy this allows valid comparisons with first principles fine-structure calculations to be made. In energy-dispersive X-ray spectroscopy, direct compositional analyses such as ζ-factor and Cliff–Lorimer k-factor analysis can be performed without the complications of channeling and TDS. We explore in detail how this method can be incorporated into existing multislice programs, and demonstrate practical considerations in implementing this method using a simulated test specimen. We show the importance of taking into account the scattering of the probe in k-factor analysis in a zone axis orientation. The applicability and limitations of the method are discussed.
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影响因子:
2.8
作者:
H. Xin;Ye Zhu;D. Muller
通讯作者:
H. Xin;Ye Zhu;D. Muller
影响因子:
2
作者:
Watanabe, M;Williams, DB
通讯作者:
Williams, DB
影响因子:
8.6
作者:
Bosman, M.;Keast, V. J.;Allen, L. J.
通讯作者:
Allen, L. J.
影响因子:
8.6
作者:
M. Prange;M. Oxley;M. Varela;S. Pennycook;S. Pantelides
通讯作者:
S. Pantelides
DOI:
--
发表时间:
1995
期刊:
影响因子:
--
作者:
D. Muller;J. Silcox
通讯作者:
J. Silcox