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Phase stability of electronically excited Si nanoparticles

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M Wautelet

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LETTER TO THE EDITOR

It is well established that the melting temperature, Tm, of nanoparticles decreases when their size decreases. In Si and similar materials, it is also known that electronic excitation leads to a decrease of Tm. Here, the cumulated effect of size reduction and high electronic excitation is studied theoretically. It is shown how, in the thermodynamical limit, both effects combine.


PACS

65.80.+n Thermal properties of small particles, nanocrystals, nanotubes

73.22.-f Electronic structure of nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals

61.46.-w Structure of nanoscale materials

Subjects

Nanoscale science and low-D systems

Dates

Issue 12 (31 March 2004)

Received 1 December 2003

Published 12 March 2004



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