Skyrmions Tune the Spin Wave Symphony
![Magnon excitations in frustrated magnets exhibit a complex, Mexican hat-like dispersion-distinct from their chiral counterparts-and are closely matched to the size of localized skyrmions, suggesting a strong interplay between these magnetic phenomena and a unique dynamic around these topological textures, as evidenced by calculations performed with parameters [latex]J_1 = 1[/latex], [latex]J_2 = 0.5[/latex], [latex]h = 0.225/S[/latex], and [latex]K = 0.15[/latex].](https://arxiv.org/html/2601.00363v1/1_Panel_A.png)
New research reveals how localized magnetic swirls called skyrmions dramatically alter the behavior of spin waves in frustrated magnets, creating exotic states with potential for novel magnonic devices.
Science
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