Non-linear effects in Ta sputtering by Aum- ions

被引:10
|
作者
Morozov, SN [1 ]
Rasulev, UK [1 ]
机构
[1] Uzbek Acad Sci, Arifov Inst Elect, Akademgorodok, Tashkent 700125, Uzbekistan
关键词
emission; cluster; sputtering; thermal spikes;
D O I
10.1016/S0168-583X(02)02216-4
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
Emission of atomic and cluster ions of Ta-n(+) (n = 1-11) has been studied experimentally in sputtering of a Ta target by n Au-m(-) (m = 1-9) cluster ions with energies of 6-21 keV. The high non-additive yield of the secondary ions under molecular bombardment has been observed. Increasing the number of atoms in the bombarding Au-m(-) ions a substantial non-linear increase in the yield of atomic Ta+ ions with quasi-thermal energy has been found. The results obtained have proved experimentally the availability of thermal spikes under cluster bombardment. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:192 / 197
页数:6
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