Nonequilibrium roughening transition by two-species particles

Details Nonequilibrium roughening transition by two-species particles Nonequilibrium roughening transition by two-species particles

1998-07-14

arxiv.org/abs/cond-mat/9807193v2

Physics

Condensed Matter

Statistical Mechanics

4 pages, source TeX file and 3 PS figures are tarred and compressed via uufiles

Scientific paper

We introduce an interface growth model exhibiting a nonequilibrium roughening transition (NRT). In the model, particles consist of two species, and deposit or evaporate on one dimensional substrate according to a given dynamic rule. When the dynamics is limited to occur on monolayer, this model has two absorbing states, belonging to the directed Ising (DI) universality class. At criticality, the density of vacant sites at the bottom layer in the growth model decays faster than the DI behavior, however, the dynamic exponent is close to the DI value, suggesting that the dynamics is related to the DI universality class. We also consider an asymmetric version of the growth dynamics, which is according to the directed percolation behavior.

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