Temperature-dependent EXAFS analysis of embedded Pt nanocrystals
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Giulian, Raquel; Araujo, Leandro; Kluth, Patrick; Sprouster, David; Schnohr, Claudia; Foran, Garry J; Ridgway, Mark C
Description
The vibrational and thermal properties of embedded Pt nanocrystals (NCs) have been investigated with temperature-dependent extended x-ray absorption fine structure (EXAFS) spectroscopy. NCs of diameter 1.8-7.4nm produced by ion implantation in amorphous SiO2 were analysed over the temperature range 20-295K. An increase in Einstein temperature (∼194K) relative to that of a Pt standard (∼179K) was evident for the smallest NCs while those larger than ∼2.0nm exhibited values comparable to bulk...[Show more]
Collections | ANU Research Publications |
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Date published: | 2009 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/20625 |
Source: | Journal of Physics: Condensed Matter |
DOI: | 10.1088/0953-8984/21/15/155302 |
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01_Giulian_Temperature-dependent_EXAFS_2009.pdf | 1.02 MB | Adobe PDF | Request a copy |
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