Nature of the Central-Peak Light Scattering in Potassium Dihydrogen Phosphate
- 9 May 1977
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 38 (19), 1081-1084
- https://doi.org/10.1103/physrevlett.38.1081
Abstract
The divergent intensity of the central peak observed in Brillouin scattering spectra in potassium dihydrogen phosphate has been studied in the paraelectric phase and found to be polarized and to show "speckle" interference fringes. This implies that the scattering centers have time-independent amplitudes and positions. Photographs of the scattering column at different temperatures near the phase transition show that the scattering-center configuration is temperature independent.
Keywords
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