Angular dependence of the magnetic coercivity in exfoliated Fe₃GaTe₂

The two-dimensional (2D) van der Waals (vdW) ferromagnet Fe₃GaTe₂ exhibits a pronounced magnetic anisotropy and magnetic coercivity up and beyond room temperature. In this study, we present a study on the evolution of the magnetic coercivitity, and the anomalous Hall response of exfoliated Fe₃GaTe₂ single crystals grown via chemical vapor transport (CVT). In Fe₃GaTe₂, Lorentz transmission electron microscopy reveals a high density of skyrmions even above room temperature. Consistent with reports on the sister compounds, we find that the coercive magnetic fields increase considerably upon exfoliation, showing a sizeable value at room temperature for fields applied along a planar direction. The anomalous Hall effect (AHE) is found to be dominated by the extrinsic as well as the intrinsic contributions, with the latter dominating the AHE in the exfoliated crystals of the highest quality. We observe large hall conductivity exceeding 680 (ohm*cm)^-1 in few layers respect to 400 (ohm*cm)^-1 in bulk crystals.