Figure 5
From: Surface Energy Driven Cubic-to-Hexagonal Grain Growth of Ge2Sb2Te5 Thin Film
Schematic drawings showing simplified geometrical characteristics of abnormal grain growth. (a) The initial face-centered cubic (f-) matrix with uniform f-grain size r f and film thickness D. (b) Abnormal hexagonal (h-) grain growth moment provides the starting h-grain size of radius r h embedded in f-matrix and a subsequent size of radius r.
