On ultrafast x-ray scattering methods for magnetism

• Published in: Advances in physics: X Vol. 9; no. 1; p. 1
• Main Authors: Plumley, R., Chitturi, S. R., Peng, C., Assefa, T. A., Burdet, N., Shen, L., Chen, Z., Reid, A. H., Dakovski, G. L., Seaberg, M. H., O'Dowd, F., Montoya, S. A., Chen, H., Okullo, A., Mardanya, S., Kevan, S. D., Fischer, P., Fullerton, E. E., Sinha, S. K., Colocho, W., Lutman, A., Decker, F.-J., Roy, S., Fujioka, J., Tokura, Y., Minitti, M. P., Johnson, J. A., Hoffmann, M., Amoo, M. E., Feiguin, A., Yoon, C., Thayer, J., Nashed, Y., Jia, C., Bansil, A., Chowdhury, S., Lindenberg, A. M., Dunne, M., Blackburn, E., Turner, J. J.
• Format: Journal Article
• Language: English
• Published: Abingdon Taylor & Francis 31.12.2024; Taylor & Francis Ltd; Taylor & Francis Group
• Subjects: Astronomy; Condensed Matter Physics (including Material Physics, Nano Physics); CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Den kondenserade materiens fysik (Här ingår: Materialfysik, nanofysik); DMRG; Engineering; Excitation spectra; Free electron lasers; free-electron laser; Fysik; instrumentation; Laboratories; Machine learning; Magnetism; Materials science; Natural Sciences; Naturvetenskap; Neutrons; Physical Sciences; Physics; Radiation; Spectrum analysis; THz; ultra-fast; Ultrafast; X-FEL; X-ray; x-ray free electron lasers; X-ray scattering; X-rays; XFEL; XPFS
• ISSN: 2374-6149; 2374-6149
• DOI: 10.1080/23746149.2024.2423935

With the introduction of x-ray free electron laser sources around the world, new scientific approaches for visualizing matter at fundamental length and time-scales have become possible. As it relates to magnetism and 'magnetic-type' systems, advanced scattering methods are being developed for studying ultrafast magnetic responses on the time-scales at which they occur. We describe three capabilities which have the potential to seed new directions in this area and present original results from each: pump-probe x-ray scattering with low energy excitation, x-ray photon fluctuation spectroscopy, and ultrafast diffuse x-ray scattering. By combining these experimental techniques with advanced modeling together with machine learning, we describe how the combination of these domains allows for a new understanding in the field of magnetism. Finally, we give an outlook for future areas of investigation and the newly developed instruments which will take us there.