Contrasts between coarsening and relaxational dynamics of surfaces

Details Contrasts between coarsening and relaxational dynamics of surfaces Contrasts between coarsening and relaxational dynamics of surfaces

1997-02-17

arxiv.org/abs/cond-mat/9702153v2

Physics

Condensed Matter

4 pages, 2 Postscript figures, REVTeX accepted for publication in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.78.3705

We discuss static and dynamic fluctuations of domain walls separating areas of constant but different slopes in steady-state configurations of crystalline surfaces both by an analytic treatment of the appropriate Langevin equation and by numerical simulations. In contrast to other situations that describe the dynamics in Ising-like systems such as models A and B, we find that the dynamic exponent z=2 that governs the domain wall relaxation function is not equal to the inverse of the exponent n=1/4 that describes the coarsening process that leads to the steady state.

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