Critical behavior of roughening transitions in parity-conserving growth processes

Details Critical behavior of roughening transitions in parity-conserving growth processes Critical behavior of roughening transitions in parity-conserving growth processes

1999-05-14

arxiv.org/abs/cond-mat/9905212v2

Phys. Rev. E 60, 3842 (1999)

Physics

Condensed Matter

Statistical Mechanics

12 pages, RevTeX, including 13 encapsulated postscript figures

Scientific paper

10.1103/PhysRevE.60.3842

We investigate a class of parity-conserving solid-on-solid models which describe the growth of an interface by the deposition and evaporation of dimers. As a key feature of the models, evaporation of dimers takes place only at the edges of terraces, leading to a roughening transition between a smooth and a rough phase. We consider several variants of growth models in order to identify universal and nonuniversal properties. Moreover, a parity-conserving polynuclear growth model is proposed. All variants display the same type of universal critical behavior at the roughening transition. Because of parity-conservation, the critical behavior at the first few layers can be explained in terms of unidirectionally coupled branching annihilating random walks with even number of offspring.

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