Reaction dynamics following keV cluster bombardment
Reaction dynamics following keV cluster bombardment
复制标题
keV团簇轰击后的反应动力学
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
B. Garrison
中科院分区：
文献类型：
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作者：
Kathleen E. Ryan;I. A. Wojciechowski;B. Garrison
用分子动力学(MD)模拟方法研究了C60和AU3团簇高能轰击纯无定形水冰基质后，有利于化学反应的区域的性质。模拟表明，这两种弹丸，特别是C60，在密度较高的情况下产生了过多的反应区域，表明多个原子或分子同时参与了团簇轰击引发的反应。反应水分子的总数明显少于溅射的总产额，这证实了两种团簇粒子对分子深度剖面实验是有用的。
The nature of the regions that are favorable for chemical reactions has been investigated for a pure amorphous water ice substrate following energetic bombardment by C60 and Au3 cluster projectiles using molecular dynamics (MD) simulations. The simulations show that both projectiles, especially C60, produce regions where a plethora of reactions occur at elevated densities indicating that multiple atoms or molecules are involved simultaneously in the reactions initiated by cluster bombardment. The total number of reacted water molecules is significantly less than the total sputtering yield, which confirms that both cluster projectiles are useful for molecular depth profiling experiments.