3 papers
cond-mat.mtrl-sci2026
Full Minimal Coupling All-Electron Real-Time TDDFT for X-Ray-Matter Interactions
Daniel Schacher, Tod A. Pascal, Craig P. Schwartz +1
Standard real-time time-dependent density functional theory (RT-TDDFT) couples light to matter through a spatially uniform (dipole) vector potential, an approximation that breaks d…
cond-mat.mtrl-sci2026
The Surface Sensitivity of X-ray Second Harmonic Generation as a Function of Energy
Daniel Schacher, Tod A. Pascal, Keith V. Lawler +1
The surface sensitivity and probe depth in the x-ray regime of diamond for second harmonic generation (SHG) was investigated both analytically and computationally with velocity gau…
cond-mat.mtrl-sci2025
Isostructural electronic transition in MoS probed by solid-state high harmonic generation spectroscopy
Bailey R. Nebgen, Victor Chang Lee, Jacob A. Spies +5
Studying materials under extreme pressure in diamond anvil cells (DACs) is key to discovering new states of matter, yet no method currently allows the direct measurement of the ele…