dc.contributor.author |
Ridings, Kannan M |
en |
dc.contributor.author |
Aldershof, Thomas S |
en |
dc.contributor.author |
Hendy, Shaun |
en |
dc.date.accessioned |
2019-06-19T21:01:55Z |
en |
dc.date.issued |
2019-03 |
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dc.identifier.citation |
Journal of chemical physics 150(9):094705 Mar 2019 |
en |
dc.identifier.issn |
0021-9606 |
en |
dc.identifier.uri |
http://hdl.handle.net/2292/47220 |
en |
dc.description.abstract |
We consider the surface melting of metal nanowires by solving a phenomenological two-parabola Landau model and by conducting molecular dynamics simulations of nickel and aluminum nanowires. The model suggests that surface melting will precede bulk melting when the melt completely wets the surface and the wire is sufficiently thick, as is the case for planar surfaces and sufficiently large nanoparticles. Surface melting does not occur if the melt partially wets or does not wet the surface. We test this model, which assumes that the surface energies of the wire are isotropic, using molecular dynamics simulations. For nickel, we observe the onset of anisotropic surface melting associated with each of the two surface facets present, but this gives way to uniform surface melting and the solid melts radially until the solid core eventually breaks up. For aluminum, while we observe complete surface melting of one facet, the lowest energy surface remains partially dry even up to the point where the melt completely penetrates the solid core. |
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dc.format.medium |
Print |
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dc.language |
eng |
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dc.relation.ispartofseries |
The Journal of chemical physics |
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dc.rights |
Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. |
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dc.rights |
This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Journal of chemical physics 150(9):094705 Mar 2019 and may be found at http://dx.doi.org/10.1063/1.5086435 |
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dc.rights.uri |
https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm |
en |
dc.rights.uri |
https://publishing.aip.org/resources/researchers/rights-and-permissions/sharing-content-online/ |
en |
dc.title |
Surface melting and breakup of metal nanowires: Theory and molecular dynamics simulation. |
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dc.type |
Journal Article |
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dc.identifier.doi |
10.1063/1.5086435 |
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pubs.issue |
9 |
en |
pubs.begin-page |
094705 |
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pubs.volume |
150 |
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dc.rights.holder |
Copyright: The authors |
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pubs.publication-status |
Published |
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dc.rights.accessrights |
http://purl.org/eprint/accessRights/OpenAccess |
en |
pubs.subtype |
Journal Article |
en |
pubs.elements-id |
766477 |
en |
pubs.org-id |
Science |
en |
pubs.org-id |
Physics |
en |
dc.identifier.eissn |
1089-7690 |
en |
pubs.record-created-at-source-date |
2019-03-10 |
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pubs.dimensions-id |
30849918 |
en |