Figure 2: Circularity control. | Nature Communications

Figure 2: Circularity control.

From: Realization of ground-state artificial skyrmion lattices at room temperature

Figure 2

(a) Family of FORCs of the hybrid sample measured in the in-plane geometry. The zoomed-in view in (b) illustrates essentially two discrete vortex annihilation fields. Remanent-state (c) MFM and (d) SEMPA (superimposed onto a scanning electron microscopy image of the dots) images, after saturating the dots in an in-plane field parallel to the flat edge of the dots to the right, indicate circularity control. Scale bar, 2 μm. A key to the magnetization winding direction is shown in the insets.

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