  Skyrmions are topologically protected entities in magnetic materials which
have the potential to be used in spintronics for information storage and
processing. However, Skyrmions in ferromagnets have some intrinsic difficulties
which must be overcome to use them for spintronic applications, such as the
inability to move straight along current. We show that Skyrmions can also be
stabilized and manipulated in antiferromagnetic materials. An antiferromagnetic
Skyrmion is a compound topological object with a similar but of opposite sign
spin texture on each sublattice, which e.g. results in a complete cancelation
of the Magnus force. We find that the composite nature of antiferromagnetic
Skyrmions gives rise to different dynamical behavior, both due to an applied
current and temperature effects.
