Large topological Hall effect induced by a field-driven metamagnetic transition in a centrosymmetric antiferromagnetic EuCuSb single crystal

This study reports the observation of a significant topological Hall effect in centrosymmetric antiferromagnetic EuCuSb single crystals, revealing the potential formation of an unknown topological magnetic structure following a first-order-like metamagnetic transition. This discovery not only provides a new platform for investigating the formation mechanisms of topological magnetic structures in centrosymmetric antiferromagnetic systems, but also offers crucial insights into the intricate coupling between topological spin textures and conduction electrons, potentially advancing the field of topological spintronics.