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11.
A dielectric response approach to the dynamic image potential of a charged particle approaching a planar metal surface is
formulated. A self-consistent scheme for calculating the instantaneous speed of the particle, and its image potential is also
derived. It is shown that the scheme does not rely on the actual approximations made while describing the response of the
metal with surface. Various approximations are discussed and the corresponding numerical results compared. The effect of self-consistency
and inclusion of dispersion in metal is noticeable. 相似文献