| Autor: |
Alessandro Forte, Thomas Gawne, Karim K. Alaa El-Din, Oliver S. Humphries, Thomas R. Preston, Céline Crépisson, Thomas Campbell, Pontus Svensson, Sam Azadi, Patrick Heighway, Yuanfeng Shi, David A. Chin, Ethan Smith, Carsten Baehtz, Victorien Bouffetier, Hauke Höppner, Alexis Amouretti, David McGonegle, Marion Harmand, Gilbert W. Collins, Justin S. Wark, Danae N. Polsin, Sam M. Vinko |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Communications Physics, Vol 7, Iss 1, Pp 1-9 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2399-3650 |
| DOI: |
10.1038/s42005-024-01752-0 |
| Popis: |
Abstract Resonant inelastic x-ray scattering (RIXS) is a widely used spectroscopic technique, providing access to the electronic structure and dynamics of atoms, molecules, and solids. However, RIXS requires a narrow bandwidth x-ray probe to achieve high spectral resolution. The challenges in delivering an energetic monochromated beam from an x-ray free electron laser (XFEL) thus limit its use in few-shot experiments, including for the study of high energy density systems. Here we demonstrate that by correlating the measurements of the self-amplified spontaneous emission (SASE) spectrum of an XFEL with the RIXS signal, using a dynamic kernel deconvolution with a neural surrogate, we can achieve electronic structure resolutions substantially higher than those normally afforded by the bandwidth of the incoming x-ray beam. We further show how this technique allows us to discriminate between the valence structures of Fe and Fe2O3, and provides access to temperature measurements as well as M-shell binding energies estimates in warm-dense Fe compounds. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
|
Nepřihlášeným uživatelům se plný text nezobrazuje |
K zobrazení výsledku je třeba se přihlásit.
|
