Abstract
Kagome lattices host strongly correlated electronic phases and topological band structures. In Mn${}_{3}X$ ($X$ = Ge, Sn), anomalous transport behavior is induced by chiral antiferromagnetic ordering of the manganese spins. Here, the authors measure the elastic tensors of Mn${}_{3}X$ and Mn${}_{3}$Sn and discover some of the largest magnetoelastic coupling ever reported for itinerant antiferromagnets. This highlights the importance of strain for controlling the magnetism of Mn${}_{3}X$, and the authors suggest that Mn${}_{3}$Ge may be particularly favorable for straintronic applications.
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