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Oleg A. Tretiakov: Stability and Dynamics of Antiferromagnetic Skyrmions

Wanneer:di 23-02-2016 14:00 - 15:00

Ferromagnetic skyrmions recently attracted a lot of attention because of their small size and ability to avoid pinning sites. Meanwhile, ferromagnetic skyrmions still have disadvantages such as the presence of stray fields and transverse dynamics, making them harder to employ for spintronic applications. In this talk, I will propose a novel topological object: antiferromagnetic skyrmion. This topological texture has no stray fields. We show that its dynamics are faster compared to its ferromagnetic analogue, and its diffusion constant is higher due to absence of Magnus force.