Faceted patterns and anomalous surface roughening driven by long-term correlated noise
arXiv:1902.06674 · doi:10.1103/PhysRevE.99.062139
Abstract
We investigate Kardar-Parisi-Zhang (KPZ) surface growth in the presence of long-term correlated noise. By means of extensive numerical simulations of models in the KPZ universality class we find that, as the noise correlator range increases, the surface develops a pattern of macroscopic facets that completely dominate the dynamics and induce anomalous kinetic roughening. This novel phenomenon is not described by the conventional dynamic renormalisation group calculations and can explain the singular behavior observed in the analytical treatment of this problem in the seminal paper of Medina {\it et al} [Phys. Rev. A {\bf 39}, 3053 (1989)].
5 pages, 4 figures, submitted to PRL
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