Summary of Newns-Anderson Approximation in Qualitative Terms

Summary of Newns-Anderson Approximation in Qualitative Terms 

The Newns-Anderson approximation successfully accounts for the main features of bonding when an adsorbate approaches the surface of a metal and its wave functions interact with those of the metal. It can also be used to describe features of the dynamics in the scattering of ions, atoms and molecules on surfaces. In particular the neutralization of ions at surfaces is well understood in this framework. The subject is beyond the scope of this book and the reader is referred to the literature [J.K. N0rskov, J. Vac. Sci. Technol. 18 (1981) 420], 

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