The reflection coefficient determining the inelastic scattered intensity is defined and analysed theoretically. Various approximations including the Born approximation, the Distorted-Wave Born approximation (DWBA), the GR method and the eikonal approximation are discussed and illustrated with examples. From an expression for the DWBA inelastic reflection coefficient for n-phonon processes, factors determining the relative role of temperature for multiphonon processes and one-phonon scattering are analysed. Several approximate expressions for the Debye-Waller factor are derived and used to define experimental criteria favouring one-phonon scattering. Most of the examples dealt with are for insulator surfaces. Chapter 8 then describes the scattering theory for metal and semiconductor surfaces.
CITATION STYLE
Benedek, G., & Toennies, J. P. (2018). Theory of atom scattering from surface phonons: Basic concepts and temperature effects. In Springer Series in Surface Sciences (Vol. 63, pp. 181–226). Springer Verlag. https://doi.org/10.1007/978-3-662-56443-1_7
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