论文标题
$ C_ {60} $和慢速离子之间的电荷转移碰撞模型
Model of Charge Transfer Collisions Between $C_{60}$ and Slow Ions
论文作者
论文摘要
已经开发了一个具有不同慢离子的$ C_ {60} $ Fullerene的电荷传输碰撞的半古典模型，以解释可用的实验数据。该数据揭示了横截面中的多个Breit-Wigner，例如峰值，随后反应性横截面的峰值降低。已经使用富勒烯和离子弹丸之间的半经验潜力进行了准谐和和反应性碰撞的电荷传输概率和横截面的计算。所有计算均以$ C_ {60} $的价电子源自简化的jellium模型得出的逼真的波函数进行。这些电子波函数的质量通过比较理论计算和实验数据已成功验证，并在谐振$ c_ {60}+ c_ {60}^+ $ collisions的小角度横截面上进行了实验数据。使用半经验的潜力来描述$ c_ {60} $与离子和兰道和兰道的碰撞理论中的谐振散射现象，我们计算了各种$ c_ {60} $电荷转移和碎片反应的理论横截面，与实验一致。
A semi-classical model describing the charge transfer collisions of $C_{60}$ fullerene with different slow ions has been developed to explain available experimental data. This data reveals multiple Breit-Wigner like peaks in the cross sections, with subsequent peaks of reactive cross sections decreasing in magnitude. Calculations of the charge transfer probabilities and cross sections for quasi-resonant and reactive collisions have been performed using semi-empirical potentials of interaction between fullerenes and ion projectiles. All computations have been carried out with realistic wave functions for $C_{60}$'s valence electrons derived from the simplified jellium model. The quality of these electron wave functions have been successfully verified by comparing theoretical calculations and experimental data on the small angle cross sections of resonant $C_{60}+ C_{60}^+$ collisions. Using the semi-empirical potentials to describe resonant scattering phenomena in $C_{60}$ collisions with ions and Landau-Zener charge transfer theory, we calculated theoretical cross sections for various $C_{60}$ charge transfer and fragmentation reactions which agree with experiments.
