ELECTRON CORRELATION AND COULOMB HOLE DEDUCED FROM X-RAY SCATTERING INTENSITIES: EXPERIMENTAL AND THEORETICAL STUDIES
ELECTRON CORRELATION AND COULOMB HOLE DEDUCED FROM X-RAY SCATTERING INTENSITIES: EXPERIMENTAL AND THEORETICAL STUDIES
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从 X 射线散射强度推导出的电子相关性和库仑空穴：实验和理论研究
DOI：
10.1142/9789812775702_0020
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
Y. Udagawa
中科院分区：
文献类型：
--
作者：
N. Watanabe;S. Ten;S. Iwata;Y. Udagawa
通过傅里叶变换，将总（弹性+非弹性）X射线散射强度σee（q）和动量转移的非弹性X射线散射强度与电子对分布函数P（r ~（12））联系起来。因此，计算的和经验的σee（q）之间的比较可以对理论波函数是否适当地考虑了电子关联进行关键的评估。此外，库仑洞，最生动地显示电子相关效应，可以直接确定从X射线散射实验。本文综述了近年来通过X射线散射强度研究电子关联效应的理论和实验进展。
Total (elastic + inelastic) x-ray scattering intensity σee(q) as well as inelastic x-ray scattering intensity, whereis the momentum transferred, are related to electron pair distribution function P(r12) through Fourier transformation. Hence comparisons between calculated and observedor σee(q) can make a critical assessment of whether or not the theoretical wave function takes electron correlation properly into consideration. Moreover, the Coulomb hole, which displays electron correlation effects most vividly, can be directly determined from x-ray scattering experiments. In this article recent developments in theoretical as well as experimental studies on electron correlation effects through x-ray scattering intensities are reviewed.