Speaker
Description
In this talk, I will discuss scientific opportunities at the proposed compact XFEL. These opportunities center
around the ultrafast dynamics in quantum materials. These dynamics include changes in the electron
wavefunction and density within atomic clusters or cages, as well as evolutions of charge and magnetic
domains. In both cases, x-ray resonance and polarization will play a central role and yield insights
complementary to that from harder x-ray sources. The interpretation of the experimental data will share
similarities with the chemical sciences, while having challenges of its own. The talk will highlight progress
from XFEL sources around the world in the last decade and discuss unique opportunities going forward.
The work at Argonne National Laboratory was supported by the U.S. Department of Energy, Office of Science,
Basic Energy Sciences, Materials Science and Engineering Division, and through the Early Career Research
Program.