Topologically protected nanoscale spin textures, such as magnetic skyrmions, have attracted significant interest for spintronics applications. While skyrmions in noncentrosymmetric materials are known to be stabilized by Dzyaloshinskii−Moriya interaction (DMI), their deliberate design in centrosymmetric materials remains a challenge. This difficulty largely stems from the complexity of controlling magnetocrystalline anisotropy − a critical factor in the absence of DMI. Here, we demonstrate the chemical tuning of magnetocrystalline anisotropy in the centrosymmetric Kagome magnet TmMn6Sn6. The resulting compound exhibits a spin reorientation transition accompanied by an emergent skyrmion bubble lattice, confirmed by Lorentz transmission electron microscopy. Our findings overcome a key materials design challenge and open possibilities for deliberate design of skyrmionic textures in centrosymmetric systems.
@article{arxiv.2504.19045,
title = {Skyrmion Bubbles by Design in a Centrosymmetric Kagome Magnet},
author = {Mohamed El Gazzah and Fehmi Sami Yasin and Sk Jamaluddin and Hari Bhandari and Resham Babu Regmi and Xiuzhen Yu and Nirmal J. Ghimire},
journal= {arXiv preprint arXiv:2504.19045},
year = {2025}
}