Figure 3: Fractal structure of the crystallization front. | Nature Physics

Figure 3: Fractal structure of the crystallization front.

From: Kinetic development of crystallization fronts in complex plasmas

Figure 3

The plot shows how the fractal dimension of the 2D contour of the front evolves during the growth phase, with respect to the crystallization area (measured in units of Δ2). The error bars are the bootstrap estimates21 for the standard deviation. Every increase in area is accompanied by a characteristic oscillation in the fractal dimension, implying a growth of surface complexity followed by a smoothing of surface structures. This is illustrated in the inset with two typical contours of the crystallization front representing two snapshots (at different times corresponding to a maximum and a minimum of the fractal dimension) of the boundary between the fluid and crystalline phases.

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