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Anomalous thermal behavior of gold nanostructures

Nanda, KK and Maisels, A and Kruis, FE and Rellinghaus, B (2007) Anomalous thermal behavior of gold nanostructures. In: Europhysics Letters (EPL), 80 . 56003:1-4.

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Gold nanostructures exhibit anomalous thermal behavior such as the shape transformation of nanorods, generation of nanoparticles by heating a mesh etc. at extremely low temperature. Here, we report a lower onset temperature of evaporation as compared with that of Ag. This appears to be inconsistent at first glance as the vapor pressure of bulk Au is lower as compared to that of Ag at a particular temperature. Analysis of our experimental results based on the thermodynamic model suggests that the surface melting is the most plausible mechanism for the unusual thermal behavior of Au.

Item Type: Journal Article
Publication: Europhysics Letters (EPL)
Publisher: Institute of Physics and IOP
Additional Information: Copyright of this article belongs to Institute of Physics and IOP.
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 29 Feb 2008
Last Modified: 19 Sep 2010 04:43
URI: http://eprints.iisc.ac.in/id/eprint/13186

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