Extended Data Fig. 8: The structure of PLS under a more disordered local environment than that in Fig. 4c–e.
From: Imaging surface structure and premelting of ice Ih with atomic resolution
a,b, Constant-height experimental AFM images and simulations of the PLS at the intersection of multiple Ic and Ih domains. c, Top and side views of the PLS. The H-bonding network in the second topmost bilayer undergoes slight adjustments depending on the local environment of the surface PLS. Tip heights for a: −140 pm, 23.30 Å and b: −190 pm, 22.90 Å. The interstitial water molecule is indicated by the red arrow. O atoms of PLS are denoted as yellow spheres in the schematic models. H and O atoms of the upper-lying and lower-lying water molecules in the topmost bilayer are denoted as white, red and dark blue spheres, respectively. Bilayers below the surface are shown in light blue.
