Roughening transitions of driven surface growth

Angel Sánchez, David Cai, Niels Gronbech-Jensen, A. R. Bishop, Z. J. Wang

Research output: Contribution to journalArticlepeer-review


A model of surface growth given by a two-dimensional discrete, driven, damped sine-Gordon equation is studied using Langevin dynamics. Our large-scale simulations show that the equilibrium Kosterlitz-Thouless roughening transition splits into two crossovers (or transitions) under the external force of, e.g., vapor-surface chemical potential difference. Three different regimes are characterized in terms of roughness, growth rate, and height-height correlations-the onset of a rough phase is accompanied by the suppression of oscillatory growth. Our results are interpreted consistently within a renormalization-group framework. We discuss the generality of our conclusions and propose specific comparisons with experiments.

Original languageEnglish (US)
Pages (from-to)14664-14668
Number of pages5
JournalPhysical Review B
Issue number20
StatePublished - 1995

ASJC Scopus subject areas

  • Condensed Matter Physics


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