Micromagnetic modeling of spin dynamics in antiferromagnets and ferrimagnets

Topological magnetic structures, such as skyrmions and domain walls, present great potential for technological applications in magnetic devices. We report on our progress in micromagnetic modeling of domain wall and skyrmion motion driven by electric currents, including spin transfer torque and/or spin orbit torque from the spin Hall effect, in antiferromagnetic and ferrimagnetic systems. We use a custom developed micromagnetic software package capable of modeling such systems, as well as ferromagnets. We investigate the influence of material parameters and methods of manipulation on domain wall and skyrmion velocities.