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Updated: Aug 14, 2026

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Published on: July 17, 2015
Morphological symmetry breaking during epitaxial growth at grazing incidence
1Department of Physics, University of Tennessee, Knoxville, Tennessee 37996 and Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
Abstract:
It is shown that, in submonolayer growth at off-normal incidence, even much less than 1% of transfer from the condensation energy of the deposited atoms into adatom motion is sufficient to induce a net adatom current from the illuminated edge of a two-dimensional island to the other edges, thereby breaking the island symmetry. Such a symmetry breaking phenomenon is most pronounced for deposition at grazing incidence. Comparison between our theoretical predictions and existing experimental results confirms the general validity of the model.
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