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铁虫 (小有名气)

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[交流] 多晶材料共振非弹性X射线散射图谱分析

最近看文献遇到了很多关于x射线光谱的数据图，尽管看了一些x射线光谱学的理论知识，但是看文献中的图谱还是很难看出谱图给出的信息，所以希望虫友们能够给予帮助，帮我分析一下以下三个图：

图a Total electron yield Cu L3 x-ray absorption spectrum
of CuCrO2. The vertical dashed line shows the location of the bottom
of the conduction band derived from analysis of XPS data. The
diamonds show the energies used for excitation of x-ray emission
spectra. 图b Cu L3 x-ray emission spectra excited at the emission
energies indicated. The prominent emission feature is seen to shift
with photon energy for the three lowest excitation energies. 图C Data
as in b above but plotted on an energy-loss scale. This allows
identification of a loss feature at a constant energy of 4.5 eV for the
three lowest exciting photon energies.
我想问问大家，图b中不能能量激发的衍射峰位置移动能给出什么信息，具有什么物理意义？

1.png