Local manipulation of skyrmion lattice in Fe3GaTe2 at room temperature

Abstract

Motivated by advances in spintronic devices, extensive explorations are underway to uncover materials that host topologically protected spin textures, exemplified by skyrmions. One critical challenge involved in the potential application of skyrmions in van der Waals (vdW) materials is the attainment and manipulation of skyrmions at room temperature. In this study, we report the creation of an intrinsic skyrmion state in the van der Waals ferromagnet Fe₃GaTe₂. By employing variable temperature magnetic force microscopy, the skyrmion lattice can be locally manipulated on Fe₃GaTe₂ flakes. The ordering of skyrmion state is further analyzed. Our results suggest Fe₃GaTe₂ emerges as a highly promising contender for the realization of skyrmion-based layered spintronic memory devices.