Volume 52, Number 6, December II 2000
|Page(s)||692 - 697|
|Section||Interdisciplinary physics and related areas of science and technology|
|Published online||01 September 2002|
Mean-field theory of kinetic smoothening of growth steps
Institute for Physics of Microstructures, Russian Academy of Sciences
GSP-105, Nizhny Novgorod, 603600 Russian Federation
2 Department of Geology and Mineralogy, Graduate School of Science, Kyoto University Sakyo, Kyoto 606-8502, Japan
3 Theoretical Physics Department, Nizhny Novgorod University 23 Gagarin Avenue, Nizhny Novgorod 603000, Russian Federation
4 Department of Optical Science and Technology, The University of Tokushima 2-1 Minamijosanjima, Tokushima 770-8506, Japan
Corresponding author: email@example.com
Accepted: 18 October 2000
The kinetics and structure of an isolated  step on a (001) surface of a Kossel crystal is considered in the framework of a self-consistent mean-field approach taking into account first- and second-nearest neighbors' interaction. A new step growth mechanism is suggested and described quantitatively, in which the incorporation of growth units from solution into kink sites by a series process via step sites can be faster than the direct incorporation. We show that under the dominance of series processes kinetic smoothening takes place that results in a drastic change of the  step structure from being rough in equilibrium to smooth during growth.
PACS: 81.10.Aj – Theory and models of crystal growth; physics of crystal growth, crystal morphology and orientation / 68.45.Da – Adsorption and desorption kinetics; evaporation and condensation / 68.45.-v – Solid-fluid interfaces
© EDP Sciences, 2000
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