Optically controlling the competition between spin flips and intersite spin transfer in a Heusler half-metal on sub–100-fs time scales

SA Ryan, PC Johnsen, MF Elhanoty, A Grafov, N Li… - Science …, 2023 - science.org
The direct manipulation of spins via light may provide a path toward ultrafast energy-efficient
devices. However, distinguishing the microscopic processes that can occur during ultrafast …

Ultrafast demagnetization in ferromagnetic materials: Origins and progress

X Chen, R Adam, DE Bürgler, F Wang, Z Lu, L Pan… - Physics Reports, 2025 - Elsevier
Since the discovery of ultrafast demagnetization in Ni thin films in 1996, laser-induced
ultrafast spin dynamics have become a prominent research topic in the field of magnetism …

Relationship between magnetic asymmetry and magnetization in ultrafast transverse magneto-optical Kerr effect spectroscopy in the extreme ultraviolet spectral range

J Richter, S Jana, M Hennecke, D Schick… - Physical Review B, 2024 - APS
Ultrafast transverse magneto-optical Kerr effect (T-MOKE) spectroscopy in the extreme
ultraviolet spectral range provides element-specific information about the magnetization …

Time-Resolved XUV Absorption Spectroscopy and Magnetic Circular Dichroism at the Ni M2,3-Edges

M Hennes, B Rösner, V Chardonnet, GS Chiuzbaian… - Applied Sciences, 2020 - mdpi.com
Ultrashort optical pulses can trigger a variety of non-equilibrium processes in magnetic thin
films affecting electrons and spins on femtosecond timescales. In order to probe the charge …

Unraveling femtosecond spin and charge dynamics with extreme ultraviolet transverse MOKE spectroscopy

H Probst, C Möller, M Schumacher, T Brede… - Physical Review …, 2024 - APS
The magneto-optical Kerr effect (MOKE) in the extreme ultraviolet (EUV) regime has helped
to elucidate some of the key processes that lead to the manipulation of magnetism on …

Distinct spectral response in -edge magnetic circular dichroism

K Yao, F Willems, C von Korff Schmising, I Radu… - Physical Review B, 2020 - APS
Experimental investigations of ultrafast magnetization dynamics increasingly employ
resonant magnetic spectroscopy in the ultraviolet (XUV) spectral range. Besides allowing …

[HTML][HTML] Ultrafast element-resolved magneto-optics using a fiber-laser-driven extreme ultraviolet light source

C Möller, H Probst, J Otto, K Stroh, C Mahn… - Review of Scientific …, 2021 - pubs.aip.org
We present a novel setup to measure the transverse magneto-optical Kerr effect in the
extreme ultraviolet spectral range based on a fiber laser amplifier system with a repetition …

[HTML][HTML] Experimental confirmation of the delayed Ni demagnetization in FeNi alloy

S Jana, R Knut, S Muralidhar, RS Malik… - Applied Physics …, 2022 - pubs.aip.org
Element-selective techniques are central for the understanding of ultrafast spin dynamics in
multi-element materials, such as magnetic alloys. Recently, however, it turned out that the …

[HTML][HTML] Toward ultrafast magnetic depth profiling using time-resolved x-ray resonant magnetic reflectivity

V Chardonnet, M Hennes, R Jarrier, R Delaunay… - Structural …, 2021 - pubs.aip.org
During the last two decades, a variety of models have been developed to explain the
ultrafast quenching of magnetization following femtosecond optical excitation. These models …

Element-resolved evidence of superdiffusive spin current arising from ultrafast demagnetization process

R Gupta, F Cosco, RS Malik, X Chen, S Saha, A Ghosh… - Physical Review B, 2023 - APS
Using element-specific measurements of the ultrafast demagnetization of Ru/Fe 65 Co 35
hetero-structures, we show that Ru can exhibit a significant magnetic contrast (3 …