Evolution of magnetic bubble domains in the uniaxial ferromagnet CeRuGaB inferred from the Hall effect and ac magnetic susceptibility
arXiv:2508.16020 · doi:10.1088/1361-648X/ae2bd4
Abstract
We study the Hall effect, AC magnetic susceptibility (), and magnetic force microscopy of the uniaxial ferromagnet CeRuGaB 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 , and the THE signal, we deduce that the magnetic bubbles of CeRuGaB evolve from the trivial to topological spin texture with field. Our findings will be utilized to expand the search for magnetic materials hosting the topological spin textures to ones with uniaxial anisotropy, and open a new possibility to tailor the topological spin texture.
arXiv comment9 pages, 7 figures; minor updates on figures and text
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