ArticleNature communications2022
Ultrafast time-evolution of chiral Néel magnetic domain walls probed by circular dichroism in x-ray resonant magnetic scattering.
Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Ultrafast internal dynamics of chiral domain walls probed by time-resolved x-ray resonant magnetic scattering.Structural dynamics (Melville, N.Y.) · 2026Article
- Sub-wavelength extreme ultraviolet microscopy reveals domain-wall stability during ultrafast demagnetization.Nature materials · 2026Article
- Spin dynamics in elemental Ni and NiStructural dynamics (Melville, N.Y.) · 2025Article
- Toward ultrafast magnetic depth profiling using time-resolved x-ray resonant magnetic reflectivity.Structural dynamics (Melville, N.Y.) · 2021Article
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Authors and funding
21 authors.
Funding
Abstract
Non-collinear spin textures in ferromagnetic ultrathin films are attracting a renewed interest fueled by possible fine engineering of several magnetic interactions, notably the interfacial Dzyaloshinskii-Moriya interaction. This allows for the stabilization of complex chiral spin textures such as chiral magnetic domain walls (DWs), spin spirals, and magnetic skyrmions among others. We report here on the behavior of chiral DWs at ultrashort timescale after optical pumping in perpendicularly magnetized asymmetric multilayers. The magnetization dynamics is probed using time-resolved circular dichroism in x-ray resonant magnetic scattering (CD-XRMS). We observe a picosecond transient reduction of the CD-XRMS, which is attributed to the spin current-induced coherent and incoherent torques within the continuously varying spin texture of the DWs. We argue that a specific demagnetization of the inner structure of the DW induces a flow of spins from the interior of the neighboring magnetic domains. We identify this time-varying change of the DW texture shortly after the laser pulse as a distortion of the homochiral Néel shape toward a transient mixed Bloch-Néel-Bloch texture along a direction transverse to the DW.
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