Sputtering and reflection under cluster bombardment of solids

被引:6
作者
Anders, Christian
Urbassek, Herbert M. [1 ]
机构
[1] Univ Kaiserslautern, Dept Phys, D-67663 Kaiserslautern, Germany
关键词
Molecular-dynamics simulation; Cluster impact; Sputtering; Reflection; MOLECULAR-DYNAMICS; ENERGY; IMPACT; SURFACES; CRATERS;
D O I
10.1016/j.nimb.2013.04.076
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
Using molecular-dynamics simulation, we study the sputtering induced by energetic impacts of projectile clusters containing N = 100 and 1000 atoms. Both a metallic target and a van-der-Waals-bonded material are studied. We focus on self-bombardment at perpendicular incidence. The total emission yield is composed of the sputter yield of the target material and the reflection yield of reflected projectile cluster atoms. The dependence of these yields on the impact energy shows a slow transition from reflection- to sputter-dominated emission. Similarities and differences between the emission yield of metals and of van-der-Waals-bonded materials are discussed. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:304 / 307
页数:4
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