Temperature-dependent growth shapes of Ni nanoclusters on NiAl(110)
dc.contributor.author | Thiel, Patricia | |
dc.contributor.author | Unal, Baris | |
dc.contributor.author | Jing, Dapeng | |
dc.contributor.author | Thiel, Patricia | |
dc.contributor.author | Evans, James | |
dc.contributor.author | Evans, James | |
dc.contributor.department | Ames National Laboratory | |
dc.contributor.department | Physics and Astronomy | |
dc.contributor.department | Materials Science and Engineering | |
dc.contributor.department | Mathematics | |
dc.contributor.department | Chemistry | |
dc.date | 2018-02-17T10:34:12.000 | |
dc.date.accessioned | 2020-06-30T06:17:40Z | |
dc.date.available | 2020-06-30T06:17:40Z | |
dc.date.copyright | Sat Jan 01 00:00:00 UTC 2011 | |
dc.date.issued | 2011-01-01 | |
dc.description.abstract | <p>Scanning tunneling microscopy studies reveal that two-dimensional nanoscale Ni islands formed by deposition of Ni on NiAl(110) between 200–400 K exhibit far-from-equilibrium growth shapes which change systematically with temperature. Island structure reflects the two types of adsorption sites available for Ni adatoms, and island shapes are controlled by the details of adatom diffusion along island edges accounting for numerous local configurations. The temperature dependence of the island shapes is captured and elucidated by kinetic Monte Carlo simulation of a realistic atomistic-level multisite lattice-gas model incorporating precise diffusion barriers. These barriers are obtained by utilizing density functional theory to probe energetics not just at adsorption sites but also at transition states for diffusion. This success demonstrates a capability for predictive atomistic-level modeling of nanocluster formation and shape selection in systems that have a high level of energetic and kinetic complexity.</p> | |
dc.description.comments | <p>The following article appeared in <em>Journal of Chemical Physics</em> 135, 8 (2011): 084706 and may be found at doi: <a href="http://dx.doi.org/10.1063/1.3626581" target="_blank">10.1063/1.3626581</a>.</p> | |
dc.format.mimetype | application/pdf | |
dc.identifier | archive/lib.dr.iastate.edu/physastro_pubs/195/ | |
dc.identifier.articleid | 1190 | |
dc.identifier.contextkey | 8000584 | |
dc.identifier.s3bucket | isulib-bepress-aws-west | |
dc.identifier.submissionpath | physastro_pubs/195 | |
dc.identifier.uri | https://dr.lib.iastate.edu/handle/20.500.12876/56940 | |
dc.language.iso | en | |
dc.source.bitstream | archive/lib.dr.iastate.edu/physastro_pubs/195/2011_EvansJW_TemperatureDependentGrowth.pdf|||Fri Jan 14 21:57:13 UTC 2022 | |
dc.source.uri | 10.1063/1.3626581 | |
dc.subject.disciplines | Biological and Chemical Physics | |
dc.subject.disciplines | Chemistry | |
dc.subject.disciplines | Materials Science and Engineering | |
dc.subject.disciplines | Mathematics | |
dc.subject.keywords | Institute for Physical Research and Technology | |
dc.title | Temperature-dependent growth shapes of Ni nanoclusters on NiAl(110) | |
dc.type | article | |
dc.type.genre | article | |
dspace.entity.type | Publication | |
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