Figure 4
From: Critical scaling of icosahedral medium-range order in CuZr metallic glass-forming liquids

The dependence of of an ISRO on its node degree k in supercooled liquids at 900 K (black) and 1000 K (red), respectively.
The inset histogram shows the change of the formation energies of ISROs with different node degree k. Two atomic configurations of ISROs with k = 0 and k = 4 obtained from MD simulation were also presented for geometric comparison.