标题：A theoretical treatment for the dynamics of near-resonant charge exchange in gas-surface scattering
作者：Guan, D; Yi, XZ; Ding, SL; Yang, BH; Olson, JA
作者机构：[Guan, D; Yi, XZ; Ding, SL; Yang, BH; Olson, JA]Shandong Univ, Inst Theoret Chem, Shandong 250100, Peoples R China.;[Guan, D; Yi, XZ; Ding 更多
通讯作者地址：[Guan, D]Shandong Univ, Inst Theoret Chem, Shandong 250100, Peoples R China.
关键词：near-resonant charge exchange in gas-surface collisions; two electronic; stare system; quadratic forms method; non-adiabatic gas-surface; collisions; electronic transition probability
摘要：A new approach for solving the problem of the dynamics of near-resonant charge exchange occurring in gas-surface collisions is presented for two electronic state system. This theory is based on Micha's common eikonal formalism which gives the evolution of the transition amplitudes and the nuclear trajectories. In this new theoretical treatment, the quadratic forms method in linear analysis is used for calculating the electronic transition amplitudes. The results show that a large part of the calculation can be carried out analytically. Since such a calculation only requires a small computational efforts, it is thus possible to carry out extensive parameter variation in an assumed potential function in order to fit calculations to experiments. This method was applied to scattering of Na atom from W(110) surface. The oscillatory behavior of transition probability with angular frequency omega(t) is also analysed in detail and discussed. (C) 1997 Elsevier Science B.V.