  We identify a mechanism to convert skyrmions and antiskyrmions into their
antiferromagnetic (AFM) counterparts via interfacial engineering. The key idea
is to combine properties of an antiferromagnet and a spin-orbit (SO) coupled
metal. Utilizing hybrid Monte Carlo (HMC) simulations for a generic microscopic
electronic Hamiltonian for the interfacial layers, we explicitly show the
emergence of AFM skyrmions and AFM antiskyrmions. We further show that an
effective spin Hamiltonian provides a simpler understanding of the results. We
discuss the role of electronic itinerancy in determining the nature of magnetic
textures, and demonstrate that the mechanism also allows for a tuning of
antiskyrmion size without changing the SO coupling.
