Highly choreographed atomic motion and mechanism of interface amorphization

The top and side views of the atomic configurations of the advancing interface at (a) 0ps to (m) 6000ps in the diffusion couple with (100) Al plane orientation parallel to the interface. The crystallinity of each atom is shown by the static structure factor (inside the frame); and only the amorphous phase are shown in the rest of the figures. The scale bar shows the distance (Å) of the nucleating and growing amorphous phase along the z-axis from the selected starting time (0 ps). Each figure contains a top view and a side view and the color represents the advancing distance of the interface along the z-coordinate. The positions of the corresponding side views in each top view are marked by the dashed lines. The top view is taken as the upper boundary of the interface where amorphization transition is occurring. The dash lines point out the sections of the upper edge of the side view.635