Journal
NANOTECHNOLOGY
Volume 19, Issue 4, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/19/04/045709
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An analytical model is developed for calculation of the surface energy of a nanowire based on thermodynamics and continuum medium mechanics. The core-shell structure and the outer surface skin of the nanowire are considered for the one-dimensional nanostructure and contributions from chemical and structural effects to the surface energy are discussed. It is found that the surface energy of nanowires decreases with the diameter reduction, which induces the melting temperature depression of nanowires. Theoretical results are in agreement with the results of experiments and simulations.
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