Long range order in two dimensional fractal aggregation.
Long range intercluster structural order has been observed in the late, diffusion-limited stages of cluster-cluster aggregation of colloidal monolayers at liquid surfaces. The structure factor S(q, t) scales as q m -df (t)F(q/q m ), the exponent being the fractal dimension of two dimensional diffusion-limited cluster aggregation. Such scaling is not observed when the aggregation is reaction limited