Negative Dispersion of High-Frequency Sound Velocity in Aqueous Solutions of Non-Electrolyte in a Vicinity of the Singular Point Concentration

Authors

  • L. M. Sabirov Physics Department, Samarkand State University
  • D. I. Semenov Physics Department, Samarkand State University
  • Kh. S. Khaydarov Physics Department, Samarkand State University

DOI:

https://doi.org/10.15407/ujpe60.09.0872

Keywords:

sound velocity, dispersion, Rayleigh scattering, water solution, 4-methylpyridine

Abstract

A new method of determination of the hypersound velocity dispersion is proposed. It is based on the direct measurement of the frequency shift of Brillouin components in the light scattering spectra registered at different angles. The concentration dependence of the hypersound velocity dispersion is studied in 4-methylpyridine-water solutions. Negative dispersion is experimentally observed in the region of the singular point concentration.

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UJP 2015 V60 #9

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Published

2019-01-15

Issue

Vol. 60 No. 9 (2015)

Section

Soft matter

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How to Cite

Negative Dispersion of High-Frequency Sound Velocity in Aqueous Solutions of Non-Electrolyte in a Vicinity of the Singular Point Concentration. (2019). Ukrainian Journal of Physics, 60(9), 872. https://doi.org/10.15407/ujpe60.09.0872

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