Theory of Brillouin-scattering intensity in rare-gas crystals

Oxtoby, David W. ; Chandrasekharan, V. (1977) Theory of Brillouin-scattering intensity in rare-gas crystals Physical Review B, 16 (4). pp. 1706-1710. ISSN 0163-1829

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Existing Brillouin-scattering intensity measurements on rare-gas crystals are in poor agreement with the point-dipole theory of interaction polarizabilities. We generalize this theory to include short-range overlap and exchange effects and show that large changes in elasto-optic (Pockels) coefficients result, and that agreement with experiment is significantly improved. Finally, we suggest that experimental data on Pockels coefficients may be used to determine the behavior of pair-polarizability anisotropies at the crystal nearest-neighbor separation.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:27395
Deposited On:10 Dec 2010 12:32
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