Physics – Condensed Matter
Scientific paper
1995-02-24
Physics
Condensed Matter
11 pages
Scientific paper
We study numerically the spatial properties of relaxation clusters in a two dimensional sandpile automaton with dynamic rules depending stochastically on a parameter p, which models the effects of static friction. In the limiting cases p=1 and p=0 the model reduces to the critical height model and critical slope model, respectively. At p=p_c, a continuous phase transition occurs to the state characterized by a nonzero average slope. Our analysis reveals that the loss of finite average slope at the transition is accompanied by the loss of fractal properties of the relaxation clusters.
Luebeck S.
Tadic Bosiljka
Usadel K. D.
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