{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,4]],"date-time":"2026-08-04T15:43:47Z","timestamp":1785858227576,"version":"3.56.0"},"reference-count":71,"publisher":"AIP Publishing","issue":"4","license":[{"start":{"date-parts":[[2026,8,4]],"date-time":"2026-08-04T00:00:00Z","timestamp":1785801600000},"content-version":"vor","delay-in-days":34,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001659","name":"Deutsche Forschungsgemeinschaft","doi-asserted-by":"publisher","award":["TRR227"],"award-info":[{"award-number":["TRR227"]}],"id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100014806","name":"Elettra-Sincrotrone Trieste","doi-asserted-by":"publisher","award":["20245143"],"award-info":[{"award-number":["20245143"]}],"id":[{"id":"10.13039\/100014806","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Fermi Free Electron Laser","award":["20214046"],"award-info":[{"award-number":["20214046"]}]}],"content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2026,7,1]]},"abstract":"<jats:p>For the integration of two-dimensional materials in future devices, a fundamental understanding of their response to external stimuli is needed. Toward this goal, we have investigated the electron and spin dynamics in the metallic van der Waals material Fe3GeTe2 (FGT) in its paramagnetic state after ultrafast optical excitation. To this end, we have employed a zone plate streaking technique with probing energies in the extreme ultraviolet range, tuned to the Fe M2,3 and Te N4,5 absorption edges. This approach provides insights into energy-dependent charge dynamics with a sensitivity to transient absorption changes on the order of \u223c10\u22124. We find a slow carrier relaxation time at both elemental edges\u2014up to (2.2\u00b10.6)\u2009ps in Te and exceeding several picoseconds in Fe\u2014which is surprising for a metal. To elucidate the complex time-resolved response, we also employ static x-ray absorption spectroscopy at the corresponding elemental edges, in which we find a double feature at the Fe M2,3 edge. We attribute this to different Fe sites in the pristine material and an oxidized surface layer, and we propose that the time-resolved absorption dynamics show a mixture of signals stemming from the different species. Additionally, we conducted time-resolved x-ray magnetic circular dichroism measurements in FGT at room temperature. We do not find clear evidence of the previously observed light-induced ferromagnetic order above TC. Our study lays the groundwork for a deeper understanding of charge and spin dynamics in FGT after optical excitation as part of a roadmap for 2D spintronics.<\/jats:p>","DOI":"10.1063\/4.0001216","type":"journal-article","created":{"date-parts":[[2026,8,4]],"date-time":"2026-08-04T14:45:23Z","timestamp":1785854723000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":0,"title":["Simultaneous two-color absorption dynamics in the van der Waals ferromagnet Fe3GeTe2"],"prefix":"10.1063","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-1491-3680","authenticated-orcid":false,"given":"Nele","family":"Stetzuhn","sequence":"first","affiliation":[{"name":"Department of Physics, Freie Universit\u00e4t Berlin 1 , Arnimallee 14, 14195 Berlin,","place":["Germany"]},{"name":"Max Born Institute for Nonlinear Optics and Short-Pulse Spectroscopy 2 , Max-Born-Str. 2A, 12489 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