Fig. 1: High-speed 3D-SFM imaging (IMAGE)
Caption
Fig. 1: High-speed 3D-SFM imaging
(a) Imaging principle of 3D-SFM, where the distribution in three-dimensional space can be measured by scanning the AFM tip horizontally and vertically. The grey spheres represent individual atoms constituting the tip. (b) 3D-SFM images obtained near the calcite step edge during its dissolution at 5 s / 3D image. The water distribution on the terraces and transition region is obtained, with clearly different structures in them. (c) Another example of a 3D-SFM image obtained at 1.6 s/3D image. (d) Vertical cross-sectional image obtained over the terrace and transition region. The thickness of the respective hydration structures (dark orange areas) can be seen. The top edge of the respective hydration structure in the upper terrace and transition region is approximately the same height (arrow (1)), while the position of this top edge is significantly lower in the lower region (arrow (2)). This suggests that the extended hydration layer is formed at arrow (1). (e) Classical molecular dynamics simulation. This indicates that the water in the upper terrace and transition region is at the same height, consistent with the results in (d).
Credit
2024 Miyata et al. Published by American Chemical Society
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