Fig. 4: Monte-Carlo simulation of reversible writing/deleting of skyrmions via anisotropy change near SRT.
From: Reversible writing/deleting of magnetic skyrmions through hydrogen adsorption/desorption
a Sketch of the anisotropy landscape, highlighting pinning sites with various magnetic anisotropy (labeled on top). b Simulated domains over three anisotropy change cycles, showing reversible writing/deleting of skyrmions on the sites with Kz = 0.29, 0.27, 0.25 and 0.23. The amount of anisotropy change is indicated as \(\triangle\)Kz. Exchange and DMI constants remain the same, where \(J=1\), \(\beta =0.3\) (see methods). Color wheel indicates the in-plane magnetization direction. c Anisotropy dependent single-domain (open circles) and skyrmion (gray circles) evolution, summarizing panel b.
