Skyrmion rotation

Formation and rotation of skyrmion crystal in the chiral-lattice insulator Cu2OSeO3.
S. Seki, J.-H. Kim, D. S. Inosov, R. Georgii, B. Keimer, S. Ishiwata, and Y. Tokura
Phys. Rev. B 85, 220406 (2012)

(a) Crystal structure of Cu₂OSeO₃ with two distinct Cu²⁺ sites with different oxygen coordination. (b) Proper screw spin order with a single magnetic modulation vector q. (c) Skyrmion crystal with triple magnetic modulation vectors q₁,q₂, and q₃, which lies within a plane normal to the applied magnetic field (H). The background color represents the out-of-plane component of the local magnetic moment (m_z).