Surface and Pseudosurface Modes in Ionic Crystals Academic Article uri icon


  • The nature of the surface and pseudosurface modes in ionic-crystal slabs is clarified, and some apparent discrepancies among the previous studies are resolved. The first shell-model calculations of surface-mode spectra are reported; the results for NaCl are significantly different from those obtained with the rigid-ion model. A new type of long-wavelength optical surface mode has been found in the shell-model results for RbF. © 1971 The American Physical Society.

author list (cited authors)

  • Chen, T. S., Alldredge, G. P., de Wette, F. W., & Allen, R. E.

citation count

  • 55

publication date

  • June 1971