Surface and Pseudosurface Modes in Ionic Crystals
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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.