Polarized Brillouin Scattering in Salol: Effects of Rotation-Translation Coupling

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We have studied the 90 degree VV-polarized Brillouin scattering spectrum of the molecular glassformer salol and observed a previously unnoticed VV-dip feature at low frequencies for temperatures above 300K. This new feature is a consequence of rotation-translation coupling, as recently predicted by Pick, Franosch et al [Eur. Phys. J. B 31, 217, 229 (2003)], who showed its relationship to the Rytov dip that occurs in the corresponding VH spectrum. The analysis of the spectra shows good agreement with the theoretical predictions.
4 pages, 2 figures

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Soft Condensed Matter, Statistical Mechanics

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http://salesiana.dossiersoluciones.com/handle/123456789/23931

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0405202
 http://arxiv.org/abs/cond-mat/0405202

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arXiv