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Exchange-enhancement of the ultrafast magnetic order dynamics in antiferromagnets

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arxiv 2206.05783 v1 pith:SZDB7FG6 submitted 2022-06-12 cond-mat.mtrl-sci

Florian Jakobs , Unai Atxitia This is my paper · ORCID
classification cond-mat.mtrl-sci
keywords dynamicsantiferromagnetsmagneticorderultrafastabsentangularatomistic
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We theoretically demonstrate that the ultrafast magnetic order dynamics in antiferromagnets is exchange-enhanced in comparison to their ferromagnetic counterparts. We provide an equation of motion for the magnetic order dynamics validated by computer simulations using atomistic spin dynamics methods. The exchange of angular momentum between sublattices speeds up the dynamics in antiferromagnets, a process absent in ferromagnets.

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Cited by 1 Pith paper

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  1. Studying all-optical magnetization switching of GdFe by double-pulse laser excitation

    cond-mat.mtrl-sci 2025-06 conditional novelty 6.0 of 10

    A GdFe ferrimagnet can be toggled back by a second, weaker laser pulse arriving 3 to 4 picoseconds after the first, a speed record for this material.

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