NDLI: Surface nucleation and growth in the system of interacting particles.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Chromcová, Z. Chvoj, Z.
Description	Country affiliation: Czech Republic Author Affiliation: Chvoj Z ( Institute of Physics of Academy of Sciences of the Czech Republic, v.v.i., Na Slovance 2, CZ-18221 Prague 8, Czech Republic. chvoj@fzu.cz)
Abstract	Recent experiments on epitaxial growth of metals on graphene have shown a strong dependence of island densities on coverage. These investigations cannot be explained by the standard mean-field nucleation theories. To understand them, we extend to higher coverage the former theory of rate equations developed for the initial state of nucleation, in a system where adsorbate interaction is included. We account for that, in the case of high coverage, the repulsive interaction influences both the attachment of monomers to clusters and the mobility of atoms. In our work we analyze the modification of the dependence of the island density on coverage, temperature and F/D ratio. In some regimes our theory results in the experimentally observed substantial growth of island density with coverage for a high deposited amount and a weak dependence on deposition rate F. We also find out the local maxima in temperature dependence of island density, as a consequence of long-range repulsive interactions.
ISSN	09538984
e-ISSN	1361648X
Journal	Journal of Physics: Condensed Matter
Issue Number	13
Volume Number	24
Language	English
Publisher	IOP Publishing
Publisher Date	2012-04-04
Publisher Place	Great Britain (UK)
Access Restriction	Open
Subject Keyword	Graphite Chemistry Metabolism Computer Simulation Macromolecular Substances Models, Chemical Particle Size Phase Transition Surface Tension Thermodynamics Research Support, Non-u.s. Gov't Discipline Condensed Matter Physics
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Materials Science

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