Enhanced sputtering yields from single-ion impacts on gold nanorods

G. Greaves; J. A. Hinks; P. Busby; N. J. Mellors; A. Ilinov; A. Kuronen; K. Nordlund; S. E. Donnelly

doi:10.1103/PhysRevLett.111.065504

Enhanced sputtering yields from single-ion impacts on gold nanorods

G. Greaves, J. A. Hinks, P. Busby, N. J. Mellors, A. Ilinov, A. Kuronen, K. Nordlund, S. E. Donnelly

Research output: Contribution to journal › Article › peer-review

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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.

Original language	English
Article number	065504
Journal	Physical Review Letters
Volume	111
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevLett.111.065504
Publication status	Published - 8 Aug 2013

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10.1103/PhysRevLett.111.065504

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AU - Greaves, G.

AU - Hinks, J. A.

AU - Busby, P.

AU - Mellors, N. J.

AU - Ilinov, A.

AU - Kuronen, A.

AU - Nordlund, K.

AU - Donnelly, S. E.

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AB - 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.

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Enhanced sputtering yields from single-ion impacts on gold nanorods

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