Fig. 4: Topological transitions of magnetic skyrmionic structures induced by gas adsorption. | Nature Communications

Fig. 4: Topological transitions of magnetic skyrmionic structures induced by gas adsorption.

From: Magnetic skyrmionic structures with variable topological charges in engineered Dzyaloshinskii-Moriya interaction systems

Fig. 4

a Compound SPLEEM image of a trivial bubble in the alternating-DMI system [Ni/Co]n/Pd/W(110). b The corresponding Néel-chirality image overlayered with the morphology image. c, d compound SPLEEM image and derived Néel-chirality image at the same location after ~0.2 ML oxygen chemisorption. e–h Compound SPLEEM image and Néel-chirality image overlayered with morphology image of antiskyrmion transformed into skyrmion. i–l, m–p Monte-Carlo simulations of topological transition of trivial bubble and antiskyrmion to skyrmions, respectively. The DMI’s initial sign settings in the simulation are adapted from experimental LEEM images, indicated by the light and dark in (j, n).

Back to article page