Fig. 4: Micromagnetic simulations of the SAW induced skyrmions alignment.
From: Ordered creation and motion of skyrmions with surface acoustic wave
a The magnetization distribution of the simulated ferromagnetic layer at 5.89 ns. Here, the SAW was excited at 5 ns. The generated skyrmions and stripe domains are aligned in an organized way under the excitation of SAW. Color maps of the strain εxx (b–e), magnetization mz (f–i), magnetization mx (j–m) and SAW energy density (n–q) for the selected area in (a) at different simulation time from 0.01 ns to 5.89 ns. The total energy (r) and SAW energy (s) vary with the simulation time. The solid triangles represent the time corresponding to the color maps of b–e.
