Skyrmions are topological solitons with integer winding number Q = ±1, stabilized by DMI (Dzyaloshinskii-Moriya).
Merons carry Q = ±1/2 and come in pairs/lattices in frustrated magnets with competing exchange.
Antiskyrmions have Q = −1, stabilized by anisotropic DMI in D2d-symmetric materials.
Color = out-of-plane spin S_z, arrows = in-plane components. DMI/J ratio controls texture size.