abstract
- We study the Hall effect, AC magnetic susceptibility (χac), and magnetic force microscopy of the uniaxial ferromagnet CeRu2Ga2B with a centrosymmetric crystal structure. We observe a finite topological Hall effect (THE) within the ordered phase, before the magnetization is polarized by applied field. By comparing the field dependences of the area fraction of the magnetic bubbles, the derivative of χac, and the THE signal, we deduce that the magnetic bubbles in CeRu2Ga2B evolve from the trivial to topological spin texture with field. Our findings enable the expansion of the search for magnetic materials hosting topological spin textures to include uniaxial ferromagnets and open a new possibility to tailor the topological spin texture.