CROSSOVER SCALING IN SURFACE GROWTH WITH TRUNCATED POWER-LAW NOISE

We demonstrate the existence of a simple scaling form which describes the crossover from anomalous to Gaussian exponents as a function of cutoff in the Zhang model of surface growth for mu > 2, where mu is the exponent characterising the power-law noise distribution. For mu = 2 we find a novel scaling form with logarithmic corrections. Our results for cutoff scaling at mu = 2 are supported by the scaling of the saturation growth velocity.