Physics – Condensed Matter – Materials Science
Scientific paper
2008-09-22
Physics
Condensed Matter
Materials Science
6 pages, 6 figures. Proceedings of 11-th Symposium on Surface Physics, Prague 2008
Scientific paper
10.2478/s11534-008-0124-z
We present theoretical study of morphology of Fe islands grown at Mo(110) surface in sub-monolayer MBE mode. We utilize atomistic SOS model with bond counting, and interactions of Fe adatom up to third nearest neighbors. We performed KMC simulations for different values of adatom interactions and varying temperatures. We have found that, while for the low temperature islands are fat fractals, for the temperature 500K islands have faceted rhombic-like shape. For the higher temperature, islands acquire a rounded shape. In order to evaluated qualitatively morphological changes, we measured averaged aspect ration of islands. We calculated dependence of the average aspect ratio on the temperature, and on the strength of interactions of an adatom with neighbors.
Goykolov Dmytro
Kotrla Miroslav
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