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Study of buried interfaces in Fe/Si multilayer by hard x-ray emission spectroscopy
Surface and Interface Analysis ( IF 1.7 ) Pub Date : 2021-08-17 , DOI: 10.1002/sia.7005
Hina Verma 1 , Karine Le Guen 1 , Renaud Delaunay 1 , Iyas Ismail 1 , Vita Ilakovac 1, 2 , Jean Pascal Rueff 1, 3 , Yunlin Jacques Zheng 4 , Philippe Jonnard 1
Affiliation  

Hard x-ray emission spectroscopy (XES) has been used to study buried layers and interfaces in a Fe/Si periodic multilayer. Until now, buried layers could be studied using the XES in the soft x-ray range. Here, we extend the methodology to study the buried interfaces in hard x-ray region (photon energy ≥ 5 keV). We report the formation of FeSi2 at all the interfaces with thicknesses of 1.4 nm. X-ray reflectivity measurements enable us to deduce the structure and thickness of the multilayer stack, thereby confirming the presence of FeSi2.

中文翻译:

用硬 X 射线发射光谱研究 Fe/Si 多层膜中的埋入界面

硬 X 射线发射光谱 (XES) 已被用于研究 Fe/Si 周期性多层中的埋层和界面。到目前为止,可以在软 X 射线范围内使用 XES 研究埋层。在这里,我们扩展了方法来研究硬 X 射线区域(光子能量 ≥ 5 keV)中的掩埋界面。我们报告了厚度为 1.4 nm的 FeSi 2在所有界面处的形成。X 射线反射率测量使我们能够推断多层叠堆的结构和厚度,从而确认 FeSi 2的存在。
更新日期:2021-08-17
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