The cylindrical obstruction is hidden by the legends. Voronoi diagrams for the spheres located in these images appear in the right column. The upper horizontal dashed line indicates the measured areal density of m before shear melting. Fits to the Einstein-Smoluchowsky equation at times indicated by the plot symbols in the main figure. The latter curve is offset upward by 4 for clarity.
Larger circles correspond to spheres which are closer to the viewing window.
Shaded spheres emphasize a single domain in the buckling superlattice. Schematic diagrams of six domain boundaries for the edge phonon. As in Fig. The central circle represents the extent of the columnar obstacle.