2 papers
cond-mat.str-el2025
Non-resonant two-photon x-ray absorption in Cu
J. J. Kas, J. J. Rehr, J. Stohr +1
We present a real-space Green's function theory and calculations of two-photon x-ray absorption (TPA). Our focus is on non-resonant K-shell TPA in metallic Cu, which has been obser…
cond-mat.str-el2024
Time-resolved X-ray Spectroscopy from the Atomic Orbital Ground State Up
Daniel Jost, Eder G. Lomeli, Ta Tang +6
X-ray spectroscopy has been a key method to determine ground and excited state properties of quantum materials with atomic specificity. Now, new x-ray facilities are opening the do…