Chiral Stoner magnetism in Dirac bands

Stoner magnetism in bands with Berry curvature features a coupling between spin chirality density and Berry's orbital magnetism, arising without microscopic spin-orbital interactions. Carriers moving in a spin texture perceive it as a geometric magnetic field coupled to their orbital motion through a spin-dependent gauge field. This emergent spin-orbital interaction, previously predicted to enable chiral magnons at system boundaries, also favors chiral spin textures such as skyrmions -- topologically protected, particle-like objects stabilized in the ground state.