TY  - JOUR
AU  - Schick, Daniel
AU  - Borchert, Martin
AU  - Braenzel, Julia
AU  - Stiel, Holger
AU  - Tümmler, Johannes
AU  - Bürgler, Daniel E.
AU  - Firsov, Alexander
AU  - von Korff Schmising, Clemens
AU  - Pfau, Bastian
AU  - Eisebitt, Stefan
TI  - Laser-driven resonant magnetic soft-x-ray scattering for probing ultrafast antiferromagnetic and structural dynamics
JO  - Optica
VL  - 8
IS  - 9
SN  - 2334-2536
CY  - Washington, DC
PB  - OSA
M1  - FZJ-2021-03898
SP  - 1237 -
PY  - 2021
AB  - Time-resolved resonant magnetic scattering in the soft-x-ray range is a powerful tool for accessing the spatially resolved and element-specific spin dynamics in magnetic materials. So far, the application of this photon-demanding technique was limited to large-scale facilities. However, upgrades to diffraction-limited storage rings supporting only x-ray pulses beyond 100 ps, and the shift of x-ray free-electron lasers toward attosecond pulses aggravate the competition for beamtime in the picosecond time window, which is of utmost relevance for magnetism research. Here we present the development of a lab-based instrument providing sufficient photon flux up to 1.5 keV photon energy covering the soft-x-ray resonances of transition and rare-earth metal atoms. Our setup features the mandatory tunability in energy and reciprocal space in combination with sub-10 ps temporal resolution, exploiting the broadband emission of a laser-driven plasma x-ray source, which is monochromatized to about 1 eV bandwidth by a reflection zone plate. We benchmark our approach against accelerator-based soft-x-ray sources by simultaneously probing the laser-induced magnetic and structural dynamics from an antiferromagnetically coupled Fe/Cr superlattice. Our development lays the foundation for laser-driven resonant scattering experiments to study ultrafast ordering phenomena of charges, spins, and orbitals.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000698524000016
DO  - DOI:10.1364/OPTICA.435522
UR  - https://juser.fz-juelich.de/record/901911
ER  -