| Issue |
EPL
Volume 80, Number 5, December 2007
|
|
|---|---|---|
| Article Number | 56003 | |
| Number of page(s) | 4 | |
| Section | Condensed Matter: Structural, Mechanical and Thermal Properties | |
| DOI | https://doi.org/10.1209/0295-5075/80/56003 | |
| Published online | 30 October 2007 | |
Anomalous thermal behavior of gold nanostructures
1
Materials Research Centre, Indian Institute of Science - Bangalore, 560012, India
2
Institute for Technology of Nanostructures, University Duisburg-Essen - 47048 Duisburg, Germany
3
Institute of Combustion and Gas Dynamics, University Duisburg-Essen - 47048 Duisburg, Germany
Corresponding author: nanda@mrc.iisc.ernet.in
Received:
26
July
2007
Accepted:
2
October
2007
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.
PACS: 68.60.Dv – Thermal stability; thermal effects
© Europhysics Letters Association, 2007
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.