Dynamic Scaling Phenomena in Growth Processes
arXiv:cond-mat/9507019 · doi:10.1016/0921-4526(95)00905-1
Abstract
Inhomogeneities in deposition may lead to formation of rough surfaces, whose height fluctuations can be probed directly by scanning microscopy, or indirectly by scattering. Analytical or numerical treatments of simple growth models suggest that, quite generally, the height fluctuations have a self-similar character. The roughness and dynamic exponents are expected to be universal; depending only on the underlying mechanism that generates self-similar roughness. Despite its ubiquitous occurrence in theory and simulations, experimental confirmations of dynamic scaling have been rare. I shall briefly review the theoretical foundations of dynamic scaling, and suggest possible reasons for discrepancies with experimental results.
Plain TEX, 10 pages, no figures. For the Proceedings of the "Fourth International Conference on Surface X-Ray and Neutron Scattering," Lake Geneva, June 1995. To be published in a special issue of Physica B
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