activity
20122025
most citedSpatial and temporal coherence properties of single free-electron laser pulses

120 citations · 347 across the 11 of their papers we have counts for

collaborators

14 papers

cond-mat.mtrl-sci2025★ 1 cited

First experiments with ultrashort, circularly polarized soft X-ray pulses at FLASH2

S. Marotzke, D. Gupta, R. -P. Wang +23

Time-resolved absorption spectroscopy as well as magnetic circular dichroism with circularly polarized soft X-rays (XAS and XMCD) are powerful tools to probe electronic and magneti…

cond-mat.mtrl-sci2025

Femtosecond charge and spin dynamics in CoPt alloys

Martin Pavelka, Simon Marotzke, Ru-Pan Wang +19

The use of advanced X-ray sources plays a key role in the study of dynamic processes in magnetically ordered materials. The progress in X-ray free electron lasers enables the direc…

cond-mat.mtrl-sci2025★ 1 cited

Simultaneous mapping of the ultrafast time and fluence dependence of the laser-induced insulator-to-metal transition in magnetite

J. O. Schunck, P. S. Miedema, R. Y. Engel +10

Pump-probe methods are a ubiquitous tool in the field of ultrafast dynamic measurements. In recent years, x-ray free-electron laser experiments have gained importance due to their…

cond-mat.mtrl-sci2022

Tracking the surface atomic motion in a coherent phonon oscillation

Davide Curcio, Klara Volckaert, Dmytro Kutnyakhov +10

X-ray photoelectron diffraction is a powerful tool for determining the structure of clean and adsorbate-covered surfaces. Extending the technique into the ultrafast time domain wil…

cond-mat.str-el2022★ 19 cited

Ultrafast manipulation of the NiO antiferromagnetic order via sub-gap optical excitation

Xiaocui Wang, Robin Y. Engel, Igor Vaskivskyi +19

Wide-band-gap insulators such as NiO offer the exciting prospect of coherently manipulating electronic correlations with strong optical fields. Contrary to metals where rapid depha…

physics.app-ph2021

Probing electron and hole co-localization by resonant four-wave mixing in the extreme-ultraviolet

Horst Rottke, Robin Y. Engel, Daniel Schick +11

The extension of nonlinear spectroscopic techniques into the x-ray domain is in its infancy but holds the promise to provide unique insight into the dynamics of charges in photoexc…