Energy-Dependent Evolution of Novel Relativistic Quantum Many-Body Hidden Satellites in Zinc X-Ray Emission Revealed by XR-HERFD

IF 3 2区化学 Q3 CHEMISTRY, PHYSICAL

The Journal of Physical Chemistry A Pub Date : 2026-09-10 Epub Date: 2026-08-26 DOI:10.1021/acs.jpca.6c04572

Ramesh Rijal, Pierce Bowman, Daniel Sier, Minh H Dao, Chanh Q Tran, Shusaku Hayama, Matteo Aramini, Nitya Ramanan, Sofia Diaz-Moreno, Christopher T Chantler

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引用次数: 0

Abstract

We present the first experimental observation of long-unresolved many-body satellite features within the Kα_1,2 X-ray emission spectra of zinc (Zn) with statistical significance exceeding 50 σ_se per data point. These novel structures, “Hidden Satellites”, were discovered using an extended-range high-energy-resolution fluorescence detection (XR-HERFD) technique at the I20-Scanning beamline of the Diamond Light Source in UK. The measurements employed a 14-crystal analyzer array specifically designed to enhance both energy resolution and statistical accuracy. The Hidden Satellites are revealed within the main Kα_1,2 emission peak and exhibit a systematic evolution with increasing incident photon energy. Principal component analysis (PCA) was employed to independently isolate these novel features and trace the evolution of these structures. Remarkably, these hidden features contribute 15% to 20% of the total emission intensity, directly challenging the long-standing assumption that the many-body reduction factor (S²₀) is constant. We observe that S²₀ exhibits a clear energy dependence, changing by over 20% over the observed energy range, with broad implications for the analysis and interpretation of X-ray absorption and emission spectra in transition metals and their compounds. Overall, it provides a new foundation for interpreting X-ray spectroscopy, influencing thousands of studies across chemistry, physics, and biology. Despite zinc metal being considered a “simple” d¹⁰ metal, the complexity of structure, asymmetry and evolution of these new processes is dramatic and points to a rich new area of inquiry.

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XR-HERFD揭示锌x射线发射中新型相对论量子多体隐藏卫星的能量依赖演化。

本文首次在锌（Zn）的k α1,2 x射线发射光谱中对长分辨多体卫星特征进行了实验观测，其统计显著性超过50 σse /数据点。这些新结构，“隐藏卫星”，是在英国钻石光源的i20扫描光束线上使用扩展范围高能量分辨率荧光探测（XR-HERFD）技术发现的。测量采用了一个14晶分析仪阵列，专门设计用于提高能量分辨率和统计精度。隐藏卫星出现在主k α1,2发射峰内，并随着入射光子能量的增加呈现出系统的演化。采用主成分分析（PCA）独立分离这些新特征，并追踪这些结构的演变。值得注意的是，这些隐藏特征贡献了总排放强度的15%至20%，直接挑战了长期以来关于多体减排量（S02）不变的假设。我们观察到，S02表现出明显的能量依赖性，在观测到的能量范围内变化超过20%，这对过渡金属及其化合物的x射线吸收和发射光谱的分析和解释具有广泛的意义。总的来说，它为解释x射线光谱学提供了一个新的基础，影响了化学、物理和生物学领域成千上万的研究。尽管锌金属被认为是一种“简单”的d10金属，但结构的复杂性、不对称性和这些新工艺的演变是引人注目的，并指向了一个丰富的新探索领域。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

The Journal of Physical Chemistry A 化学-物理：原子、分子和化学物理

CiteScore

5.20

自引率

10.30%

发文量

922

审稿时长

1.3 months

期刊介绍： The Journal of Physical Chemistry A is devoted to reporting new and original experimental and theoretical basic research of interest to physical chemists, biophysical chemists, and chemical physicists.