Enhanced Sputtering Yields from Single-Ion Impacts on Gold Nanorods

Greaves, Graeme, Hinks, J. A., Busby, P., Mellors, N. J., Ilinov, A., Kuronen, A., Nordlund, K. and Donnelly, S. E. (2013) Enhanced Sputtering Yields from Single-Ion Impacts on Gold Nanorods. Physical Review Letters, 111 (6). pp. 1-5. ISSN 0031-9007

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Abstract

Sputtering yields, enhanced by more than an order of magnitude, have been observed for 80 keV Xe ion irradiation of monocrystalline Au nanorods. Yields are in the range 100–1900  atoms/ion compared with values for a flat surface of ≈50. This enhancement results in part from the proximity of collision cascades and ensuing thermal spikes to the nanorod surfaces. Molecular dynamic modeling reveals that the range of incident angles occurring for irradiation of nanorods and the larger number of atoms in “explosively ejected” atomic clusters make a significant contribution to the enhanced yield.

Item Type:	Article
Subjects:	Q Science > QC Physics
Schools:	School of Computing and Engineering School of Computing and Engineering > Pedagogical Research Group School of Computing and Engineering > Electron Microscopy and Materials Analysis
Depositing User:	Jonathan Hinks
Date Deposited:	19 Aug 2013 12:34
Last Modified:	06 Apr 2018 17:00
URI:	http://eprints.hud.ac.uk/id/eprint/18151

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