  Topological magnetism typically appears in noncentrosymmetric compounds or
compounds with geometric frustration. Here we report the effective tuning of
magnetism in centrosymmetric tetragonal Mn2-xZnxSb by Zn substitution. The
magnetism is found to be closely coupled to the transport properties, giving
rise to to a very large topological hall effect is possibly associated with
topological magnetism. Our finding suggests Mn2-xZnxSb is a candidate material
for the centrosymmetric tetragonal topological magnetic system, offers
opportunities for studying and tuning spin textures and developing near room
temperature spin-based devices.
