Figure 3
From: Deterministic control of magnetic vortex wall chirality by electric field

Micromagnetic simulations of a head to head vortex domain wall under the action of a uniaxial magnetic anisotropy energy. (a) to (e) show successive switching of the chirality of the vortex wall. The transitions from panels (a) and (c) to panels (c) and (e) respectively involve the reversal of the x-component of the magnetisation in the regions marked by dashed circles in (b) and (d).