Comparative study of the around-Fermi electronic structure of 5d metals and metal-oxides by means of high-resolution X-ray emission and absorption spectroscopies.,Journal of Synchrotron Radiation

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Comparative study of the around-Fermi electronic structure of 5d metals and metal-oxides by means of high-resolution X-ray emission and absorption spectroscopies.
Journal of Synchrotron Radiation ( IF 2.4 ) Pub Date : 2020-04-14 , DOI: 10.1107/s1600577520003690
Anna Wach ₁ , Jacinto Sá ₂ , Jakub Szlachetko ₁

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The composition of occupied and unoccupied electronic states in the vicinity of Fermi energies is vital for all materials and relates to their physical, chemical and mechanical properties. This work demonstrates how the combination of resonant and non-resonant X-ray emission spectroscopies supplemented with theoretical modelling allows for quantitative analysis of electronic states in 5d transition metal and metal-oxide materials. Application of X-rays provides element selectivity that, in combination with the penetrating properties of hard X-rays, allows determination of the composition of electronic states under working conditions, i.e. non-vacuum environment. Tungsten metal and tungsten oxide are evaluated to show the capability to simultaneously assess composition of around-band-gap electronic states as well as the character and magnitude of the crystal field splitting.

中文翻译：

通过高分辨率 X 射线发射和吸收光谱对 5d 金属和金属氧化物的费米周围电子结构进行比较研究。

费米能量附近的占据和未占据电子态的组成对于所有材料都至关重要，并且与其物理、化学和机械性能相关。这项工作展示了如何将共振和非共振 X 射线发射光谱与理论模型相结合，对 5d 过渡金属和金属氧化物材料中的电子态进行定量分析。X射线的应用提供了元素选择性，结合硬X射线的穿透特性，可以确定工作条件（即非真空环境）下电子态的组成。对金属钨和氧化钨进行评估，以显示同时评估带隙周围电子态的组成以及晶体场分裂的特征和大小的能力。

更新日期：2020-04-14

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