Emergent noncoplanar spin chirality through magnetic and nonmagnetic substitution in the kagome antiferromagnet Mn3Sn
Controlling noncoplanar spin textures in centrosymmetric magnets remains a central challenge for realizing emergent Berry-phase phenomena. Here, we demonstrate that magnetic (Cr) and nonmagnetic (Cu) substitution at the Mn site provide distinct routes to engineer spin chirality and topological transport in the kagome a...