Evolution of magnetic bubble domains in the uniaxial ferromaget CeRu <sub>2</sub> Ga <sub>2</sub> B inferred from the Hall effect and ac magnetic susceptibility
We study the Hall effect, AC magnetic susceptibility (<i>χ</i><sub>ac</sub>), and magnetic force microscopy of the uniaxial ferromagnet CeRu<sub>2</sub>Ga<sub>2</sub>B 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<i>χ</i><sub>ac</sub>, and the THE signal, we deduce that the magnetic bubbles in CeRu<sub>2</sub>Ga<sub>2</sub>B 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.
Authors
- Ryan Baumbach (ORCID: https://orcid.org/0000-0002-6314-3629)
- Dirk Wulferding (ORCID: https://orcid.org/0000-0003-4279-2109)
- Eric D. Bauer (ORCID: https://orcid.org/0000-0003-0017-1937)
- Alexander C. Bornstein
- Peter Siegfried (ORCID: https://orcid.org/0000-0002-0145-2899)
- Minhyea Lee (ORCID: https://orcid.org/0000-0002-8559-8544)
- F. Ronning (ORCID: https://orcid.org/0000-0002-2679-7957)
- M. Maus
- Hoon Kim (ORCID: https://orcid.org/0000-0002-1960-6681)
Institutions
- Pohang University of Science and Technology (KR)
- Los Alamos National Laboratory (US)
- University of California, Santa Cruz (US)
- University of Colorado Boulder (US)
- University of Colorado System (US)
- Sejong University (KR)
Publication Details
- Journal
- Journal of Physics Condensed Matter
- Published
- 2025-12-11
- DOI
- https://doi.org/10.1088/1361-648x/ae2bd4
- Primary Topic
- Rare-earth and actinide compounds
- Type
- article
- Field-Weighted Citation Impact
- 0.00