Enhanced Sputtering Yields from Single-Ion Impacts on Gold Nanorods

被引：69

作者：

Greaves, G. ^{[1
]}

Hinks, J. A. ^{[1
]}

Busby, P. ^{[2
]}

Mellors, N. J. ^{[2
]}

Ilinov, A. ^{[3
]}

Kuronen, A. ^{[3
]}

Nordlund, K. ^{[3
]}

Donnelly, S. E. ^{[1
]}

机构：

[1] Univ Huddersfield, Sch Comp & Engn, Huddersfield HD1 3DH, W Yorkshire, England

[2] Univ Salford, Sch Comp Sci & Engn, Manchester M5 4WT, Lancs, England

[3] Univ Helsinki, Dept Phys, FI-00014 Helsinki, Finland

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 111卷 / 06期

基金：

芬兰科学院; 英国工程与自然科学研究理事会;

关键词：

EMBEDDED-ATOM-METHOD; FCC METALS; IRRADIATION; SIMULATION; CASCADES; DYNAMICS; SURFACES; DAMAGE; FLOW; AU;

D O I：

10.1103/PhysRevLett.111.065504

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 approximate to 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.

引用

页数：5

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