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首页> 外文期刊>Physical review >Elasticity, internal excitation, fragmentation, and charge transfer during grazing scattering of fast fullerenes from a KCl(001) surface
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Elasticity, internal excitation, fragmentation, and charge transfer during grazing scattering of fast fullerenes from a KCl(001) surface

机译：从KCl（001）表面掠取快速富勒烯的掠射散射过程中的弹性，内部激发，断裂和电荷转移

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摘要

C~+_(60)and C~+_(70) fullerenes with keV energies are scattered under grazing polar angles of incidence from an atomically clean and flat KCl(001) surface. For this model system of molecule surface interactions, the elastic properties of the fullerenes in front of the surface are studied by polar angular distributions. From the analysis of fragment spectra, the internal excitations of scattered molecules are deduced and excitation mechanisms are identified. Charge fractions indicate a kinematically induced neutralization of the fullerenes. Via an analysis of negatively charged fragments, the transition from a "soft" scattering event with intact outgoing fullerenes to postcollision multifragmentation is analyzed. The data are compared to three-dimensional molecular dynamics simulations based on empirical bond-order potentials.
机译：具有keV能量的C〜+ _（60）和C〜+ _（70）富勒烯在掠过的极角入射角下从原子清洁且平坦的KCl（001）表面散射。对于此分子表面相互作用的模型系统，通过极性角分布研究了表面前面的富勒烯的弹性。通过对碎片光谱的分析，推导了散射分子的内部激发，并确定了激发机理。电荷分数表明运动学上引起的富勒烯中和。通过对带负电荷的碎片进行分析，分析了从具有完整输出富勒烯的“软”散射事件到碰撞后多碎片的过渡。将数据与基于经验键序势的三维分子动力学模拟进行比较。

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