Extended Data Fig. 6: Free energy density of 2M and 2R.
From: Liquid crystal defect structures with Möbius strip topology

a,b, The horizontal midplane cross-section (left) and 3D isosurfaces (dissected for clarity) of free energy density (right) of 2M (a) and 2R (b). The free energy density is plotted relative to that of the uniform unwound far-field background.