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
This publication has 11 references indexed in Scilit:
- Central Peak of K Studied by Light ScatteringPhysical Review Letters, 1977
- Some fundamental properties of speckle*Journal of the Optical Society of America, 1976
- Defects and the central peak near structural phase transitionsPhysical Review B, 1976
- Preliminary observation of a central peak in the light-scattering spectrum of KPPhysical Review B, 1974
- Paraelectric, piezoelectric and pyroelectric crystals: I. Dielectric propertiesJournal of Physics C: Solid State Physics, 1973
- Critical Neutron Scattering in SrTiand KMnPhysical Review B, 1972
- Intensity of some brillouin and rayleigh lines in Rb D PSolid State Communications, 1972
- Critical behaviour of SrTiO3 near the 105°K phase transitionSolid State Communications, 1971
- Elasto-Optic Anomaly in KPPhysical Review Letters, 1969
- Critical Opalescence in QuartzPhysical Review Letters, 1968