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Surface Collective Excitations

  • G. Benedek
Part of the NATO Advanced Science Institute Series book series (NSSB, volume 88)

Abstract

The first part of this article is a basic introduction to the theory of surface collective excitations from the macroscopic point of view. The solution of the elastic wave equation and of the Maxwell equations combined with the appropriate boundary conditions yields the dispersion relations of Rayleigh waves and of polaritons associated with surface plasmons, excitons, optical phonons and magnons, respectively. The second part is devoted to the theory of surface phonons from the microscopic point of view. A short review of the various methods used in surface lattice dynamics serves as an introduction to the Green’s function theory of surface vibrations in ionic crystals. Finally the recent progress in the spectroscopy of surface phonons by means of atom scattering is mentioned with an illustration of the late achievement in the theoretical interpretation of inelastic spectra.

Keywords

Dispersion Curve Rayleigh Wave Surface Mode Surface Polariton Elastic Wave Equation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1983

Authors and Affiliations

  • G. Benedek
    • 1
  1. 1.Gruppo Nazionale di Struttura della Materia del Consiglio Nazionale delle RicercheIstituto di Fisica dell’UniversitàMilanoItaly

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