Extended Data Fig. 5: The island-growth mode of crystal for rough and thick interface at other κσ and T in experiments and simulations.

a, Contour plot of the height of the crystal front h(x, y), La(x, y), vver(x, y) and vlat(x, y) (from top to bottom respectively, κσ ~ 3.2, T ~ 0.4Tm in experiments. b, c The same quantities as in a for κσ ~ 2.0, T ~ 0.6Tm in experiments (b) and κσ ~ 2.0, T ~ 0.9Tm in simulations (c). At all κσ and T, we observe the vertical growth mode generating new islands and lateral growth mode around the island. The icosahedron-like particles at the interface (white spheres) is mainly eliminated by the lateral growth in a. Icosahedron-like structures are less frequent in higher-T samples and thus have little effect on the growth mode in c.