Fig. 5

Evolution of the profile in Fig. 3 at t=5.0, with a definition of the surface energy including 〈105〉 orientations. a Surface profiles at representative stages of the evolution towards the formation of a pit bounded by {105} facets only. z-axis is magnified by a factor 5. b Top view showing the \(\gamma (\hat {\mathbf {n}})\) values at the surface. The second and the last stages of panel a are reported in the top and bottom part, respectively. Symbols as in Fig. 2 are adopted to identify different families of facets