Surface optical phonons in LiF(001) observed by inelastic helium scattering
- 15 December 1986
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 34 (12) , 9045-9046
- https://doi.org/10.1103/physrevb.34.9045
Abstract
The vibrational spectrum of the LiF(001) surface along the direction is studied by Hebeam inelastic scattering with time-of-flight detection. The low-energy region of the spectrum shows the Rayleigh mode in good agreement with previous measurements. In the high-energy region both bulk and surface optical branches are detected. In particular, the Lucas mode and the surface branch are observed to have dispersions slightly different from those predicted by theoretical calculations.
Keywords
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