Institute for Physical Chemistry, Georg-August University of Göttingen, Göttingen, Germany.
J Chem Phys. 2012 Aug 14;137(6):064705. doi: 10.1063/1.4738596.
We describe a method to obtain absolute vibrational excitation probabilities of molecules scattering from a surface based on measurements of the rotational state, scattering angle, and temporal distributions of the scattered molecules and apply this method to the vibrational excitation of NO scattering from Au(111). We report the absolute excitation probabilities to the v = 1 and v = 2 vibrational states, rotational excitation distributions, and final scattering angle distributions for a wide range of incidence energies and surface temperatures. In addition to demonstrating the methodology for obtaining absolute scattering probabilities, these results provide an excellent benchmark for theoretical calculations of molecule-surface scattering.
我们描述了一种基于测量散射分子的转动状态、散射角和时间分布来获得分子从表面散射的绝对振动激发概率的方法，并将该方法应用于 NO 从 Au(111)表面散射的振动激发。我们报告了在很宽的入射能量和表面温度范围内，NO 分子被激发到 v = 1 和 v = 2 振动态的绝对激发概率、转动激发分布和最终散射角分布。除了展示获得绝对散射概率的方法学之外，这些结果还为分子-表面散射的理论计算提供了极好的基准。
