Excitation and Ionization of Ethylene by Charged Projectiles

• 作者: 张丰收 王志萍 王菁
• 来源期刊: 中国物理快报(英文版)
• 学科: 物理学
• 关键词: 电离概率 乙烯 激发 局域密度近似 分子离子 时间相关 热动力学 碰撞过程
• 年，卷（期）: 2010,（1）
• 页码范围: 96-99
• 页数: 4页
• 分类号: O431.2 TQ221.211
• 语种: 英文

摘要

Using the time dependent local density approximation, applied to valence electrons, coupled non-adiabatically to molecular dynamics of ions, the collision process between ethylene and fast charged projectiles is studied in the microscopic way. The impact of ionic motion on the ionization is explored to show the importance of treating electronic and ionic degrees of freedom simultaneously. The number of escaped electrons, ionization probabilities are obtained. Furthermore, it is found that the ionic extensions in different directions show the different patterns.