Magnetic force microscopy studies in unconventional magnetic materials

抄録

In the pursuit of innovative materials for magnetic data storage and spintronic devices, the ability to tailor magnetic domain shapes and sizes becomes crucial. Promising candidates are materials with intrinsic anisotropies or competing interactions, as they offer the potential to host diverse domain phases that can be precisely selected through external tuning parameters such as temperature and magnetic field. In this study, we employ vector magnetic fields to directly visualize the magnetic anisotropy in unconventional magnetic materials, Fe4GeTe2, Cr2Ge2Te6, and Co3Sn2S2. Our findings demonstrate the practical control of both global and local domain shapes and sizes through external field manipulation, along with the domain transition from stripes to bubble domains. These results pave the way for future applications of tailored magnetic domains, presenting exciting prospects for the field of spintronics device applications.