On Ultrafast X-ray Methods for Magnetism

作者：Rajan Plumley, Sathya R. Chitturi, Peng Cheng, Tadesse A. Assefa, N. G. Burdet, L. Shen, Alexander H. Reid, Georgi L. Dakovski, Matthew Seaberg, Frank P. O'Dowd, Sergio Montoya, Hongwei Chen, Alana Okullo, Sougata Mardanya, Kevan, Stephen, Peter Fischer, Eric E. Fullerton, S. K. Sinha, William Colocho, Alberto Lutman, Franz-Joseph Decker, Sujoy Roy, J. Fujioka, Yoshinori Tokura, Michael P. Minitti, Jeremy A. Johnson, Matthias C. Hoffmann, Michaela Amoo, Adrian Feiguin, Chuck Yoon, Jana Thayer, Yousseff Nashed, Chunjing Jia, Arun Bansil, Sugata Chowdhury, Aaron M. Lindenberg, M. Dunne, E. Blackburn, Joshua J. Turner · 发表于：arXiv (Cornell University) · 年份：2023 · DOI：10.48550/arxiv.2305.07787 · 被引用次数：3 · 研究领域：Advanced X-ray Imaging Techniques、X-ray Spectroscopy and Fluorescence Analysis、Magnetic Properties and Applications

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 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.