Surface and Pseudosurface Modes in Ionic Crystals
- 21 June 1971
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 26 (25) , 1543-1546
- https://doi.org/10.1103/physrevlett.26.1543
Abstract
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.Keywords
This publication has 10 references indexed in Scilit:
- Surface modes of vibration in an ionic crystalSolid State Communications, 1970
- Macroscopic and Microscopic Theories of Dipole-Exchange Spin Waves in Thin Films: Case of the Missing Surface StatesPhysical Review Letters, 1970
- Surface Modes Within the Bulk ContinuaPhysical Review Letters, 1970
- Lattice dynamics of sodium chloride at room temperatureJournal of Physics and Chemistry of Solids, 1970
- Optical phonons of small crystalsReports on Progress in Physics, 1970
- Normal Modes of a Semi-Infinite Ionic CrystalPhysical Review B, 1969
- Phonon Modes of an Ionic Crystal SlabThe Journal of Chemical Physics, 1968
- Optical Phonons in Finite CrystalsPhysical Review Letters, 1966
- Optical Modes of Vibration in an Ionic Crystal SlabPhysical Review B, 1965
- Theory of the vibrations of the sodium chloride latticePhilosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1940