Extended Data Fig. 5. Determining vortex and 60° domain wall widths.

a, XMLD-PEEM image of vortex-antivortex. The position of the cyan and white circle is at the centre of the antivortex. Orthogonal line profiles are taken following the red and blue dashed lines. b, XMLD measured along the red and blue line profiles. A sech² fit gives the vortex profile width as w = 132 ± 14 nm (red) and w = 95 ± 15 nm (blue). c, Colour map of in-plane Néel vector direction. Highlighted by connected circles are line profile locations traversing 60° domain walls between coloured $⟨1\overline{1}00⟩$ easy-axes domains. d, Plot of average phase variation, Δϕ, across 60° domain walls (black) and tanh fit line (red). The measured domain wall width is w = 70 ± 4 nm.