Figure 2

(a) Correlation between the number of changes in the nearest neighbors of atoms ΔNN and the atomic mobility Δr ² before and after loading. The curves are actually histograms with 5% atoms per bin. Sharp ΔNN increase occurs for the fastest 5% atoms marked by the vertical dotted line. The atoms with ΔNN ≥ 2 marked by the red dashed lineare assumed to be activated. (b) The fraction distribution of atoms with respected to their activated times N _a among 22 dynamic tests in MGs. The upper inset: the log-log plot of the fraction of atoms vs. activation probability; The lower inset: the atomic configuration colored with the activated times of each individual atoms.