Profile of a Faceted Macrostep Caused by Anomalous Surface Tension

Figure 4

Profile of the Andreev free energy, which is also the profile of the ECS. , . , with , , where represents the ECS and represents the Lagrange multiplier related to the crystal volume. We assume is equal to . The points P and Q indicate the (001) and (111) facet edges, respectively. At Q, the (111) surface and the surface with slope have the same value of Andreev free energy. The pale pink line near Q indicates a metastable surface. The end point of the pale pink line shows the spinodal point approximately.