Anomalous roughness in dimer-type surface growth

Jae Dong Noh, Hyunggyu Park, Marcel den Nijs

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


We point out how geometric features affect the scaling properties of nonequilibrium dynamic processes, by a model for surface growth where particles can deposit and evaporate only in dimer form, but dissociate on the surface. Pinning valleys (hilltops) develop spontaneously and the surface facets for all growth (evaporation) biases. More intriguingly, the scaling properties of the rough one dimensional equilibrium surface are anomalous. Its width, W ∼Lα, diverges with system size L as α=1/3 instead of the conventional universal valueα=1/2. This originates from a topological nonlocal evenness constraint on the surface configurations.

Original languageEnglish
Pages (from-to)3891-3894
Number of pages4
JournalPhysical Review Letters
Issue number17
StatePublished - 2000


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