Current-Driven Dynamics of Frustrated Skyrmions in a Synthetic Antiferromagnetic Bilayer

Skyrmions in frustrated magnets have multiple degrees of freedom that could be used to carry information in spintronic devices. In developing applications, it is important to understand the evolution in time of these twirly magnetic textures, but the dynamics of frustrated skyrmions remain elusive, especially for systems with more than a single layer. Here the authors explore the dynamics of frustrated skyrmions induced by spin currents in an antiferromagnetically exchange-coupled bilayer. The results are expected to inform the design and development of skyrmionic devices based on frustrated magnets.