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 …

Spin dynamics across metallic layers on the few-femtosecond timescale

R Géneaux, HT Chang, A Guggenmos, R Delaunay… - Physical Review Letters, 2024 - APS
We measure the light-driven response of a magnetic multilayer structure made of thin
alternating layers of cobalt and platinum at the few-femtosecond timescale. Using …

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 …

Initial electron thermalization in metals measured by attosecond transient absorption spectroscopy

BR de Roulet, L Drescher, SA Sato, SR Leone - Physical Review B, 2024 - APS
Understanding initial electron thermalization has relevance to both fundamental scientific
knowledge and application to the construction of novel devices. In this study, attosecond …

The interplay of local electron correlations and ultrafast spin dynamics in fcc Ni

T Lojewski, MF Elhanoty, L Le Guyader… - Materials Research …, 2023 - Taylor & Francis
The complex electronic structure of metallic ferromagnets is determined by a balance
between exchange interaction, electron hop** leading to band formation, and local …

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 …

Element-specific high-bandwidth ferromagnetic resonance spectroscopy with a coherent extreme-ultraviolet source

M Tanksalvala, A Kos, J Wisser, S Diddams… - Physical Review …, 2024 - APS
In this paper, we apply a tabletop, ultrafast, high-harmonic generation (HHG) source to
measure the element-specific ferromagnetic resonance (FMR) in ultrathin magnetic alloys …

Ultrafast behavior of induced and intrinsic magnetic moments in CoFeB/Pt bilayers probed by element-specific measurements in the extreme ultraviolet spectral range

C von Korff Schmising, S Jana, K Yao, M Hennecke… - Physical Review …, 2023 - APS
The ultrafast and element-specific response of magnetic systems containing ferromagnetic 3
d transition metals and 4 d/5 d heavy metals is of interest both from a fundamental as well as …