Figure 4

a Plot showing Δp_c as a function of the local density ρ_c for “non-affine” droplets in the strain free LJ solid at T = 0.4. The different colors show the van der Waals loop for various sizes of clusters 10 < n_c < 30. The data becomes sparse for much higher values of n_c, leading to worse statistics. The van der Waals loops however show stabilisation with larger n_c. We have made this quantitative by obtaining an effective barrier height ∆_c for this transition by integrating the pressure difference Δp_c along ρ_c for each of these curves. The result is plotted in b and shows that ∆_c increases with n_c as expected of a first order transition. The solid line is a linear fit.