Fig. 2: Dynamic heterogeneity obtained by DMA simulations. | NPG Asia Materials

Fig. 2: Dynamic heterogeneity obtained by DMA simulations.

From: Atomistic study of liquid fragility and spatial heterogeneity of glassy solids in model binary alloys

Fig. 2

a Histograms of atomic displacements during DMA simulations at T = 300–1300 K in increments of 50 K (\({T}_{{\rm{g}}}^{* }\)/T values are labeled on the plots). The frequency of the DMA simulation was 1 GHz. b Average atomic displacement Δrave and position of the first peak Δr1st of the histograms obtained from Panel a. c Heterogeneity parameter χ (=Δrave/Δr1st) calculated from b and non-Gaussian parameter α2 (inset) calculated from a. The blue and red curves in a indicated the histograms corresponding to the peak temperatures of α2 and χ in Panel c, respectively.

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