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arXiv · 2506.21473

Distinct element-specific nanoscale magnetization dynamics following ultrafast laser excitation

Emma Bernard·Rahul Jangid·Nanna Zhou Hagström·Meera Madhavi·Jeffrey A. Brock·Matteo Pancaldi·Dario De Angelis·Flavio Capotondi·Emanuele Pedersoli·Kyle Rockwell·Mark W. Keller·Stefano Bonetti·Eric E. Fullerton·Ezio Iacocca·Thomas J. Silva·Roopali Kukreja
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Abstract

Time-resolved ultrafast extreme ultraviolet (EUV) magnetic scattering is used to study laser-driven ultrafast magnetization dynamics of labyrinthine domains in a [Co/Ni/Pt] multilayer. Our measurements at the Co and Ni M-edges reveal distinct ultrafast distortions of the scattering pattern position and width for Ni compared to Co. Ni shows a strong modification of the scattering pattern, approximately 10 to 40 times stronger than Co. As distortions of the labyrinthine pattern in reciprocal space relate to the modification of domain textures in real space, significant differences in Co and Ni highlight a 3D distortion of the domain pattern in the far-from-equilibrium regime.

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Emma Bernard, Rahul Jangid, Nanna Zhou Hagström, Meera Madhavi, Jeffrey A. Brock, Matteo Pancaldi, Dario De Angelis, Flavio Capotondi, Emanuele Pedersoli, Kyle Rockwell, Mark W. Keller, Stefano Bonetti, Eric E. Fullerton, Ezio Iacocca, Thomas J. Silva, Roopali Kukreja. 2025-06-26. Distinct element-specific nanoscale magnetization dynamics following ultrafast laser excitation. https://arxiv.org/abs/2506.21473

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