  Synthetic antiferromagnets have great potential as skyrmion carriers in which
new properties are expected for these spin textures, owing to changed
magnetostatics and the absence of net topological charge. Here we numerically
simulate the static and dynamic behaviour of skyrmions in these systems and
clearly highlight the benefits compared to ferromagnetic single layers. In
particular, our results show a reduction of the skyrmion radius, an increase of
their velocity under current, and a vanishing of their topological deflection.
We also provide a robust and straightforward analytical model that captures the
physics of such skyrmions. Finally, by extending the model to the case of an
unbalanced SAF, we show some conditions for the system that optimise the
properties of the skyrmion for potential spintronic devices.
