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Universality Classes for Interface Growth with Quenched Disorder

LAN Amaral·A-L Barabasi·HE Stanley
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Abstract

We present numerical evidence that there are two distinct universality classes characterizing driven interface roughening in the presence of quenched disorder. The evidence is based on the behavior of $λ$, the coefficient of the nonlinear term in the growth equation. Specifically, for three of the models studied, $λ\rightarrow \infty$ at the depinning transition, while for the two other models, $λ\rightarrow 0$.

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LAN Amaral, A-L Barabasi, HE Stanley. 1994-03-29. Universality Classes for Interface Growth with Quenched Disorder. https://doi.org/10.1103/physrevlett.73.62

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