Fig. 5 | Nature Communications

Fig. 5

From: Supercluster-coupled crystal growth in metallic glass forming liquids

Fig. 5

Presence of small clusters and the proposed cluster-coupled growth mechanism. a TEM images from isothermal crystallization (Supplementary Movie 4) showing a cluster in a 20 nm MG nanorod at 340 °C. A cluster forms, rotates, and disappears within 6 s at 340 °C. The scale bar is 2 nm. b A zoom-in area of a 35 nm-diameter MG nanorod during isothermal crystallization from the glass state at 340 °C (Supplementary Movie 5). Clusters with widths around 2 nm exist in the amorphous region (cropped image in red box) and persist for several tens of seconds despite the high temperature of 340 °C. The scale bar is 3 nm. c Schematics that describe the classical theory of crystal growth (top) and a modified description of crystal growth in which small clusters can enhance the growth (bottom). d Schematic illustration showing different growth pathways, including the proposed cluster-coupled growth