NEGATIVE DISPERSION OF HIGH-FREQUENCY SOUND VELOCITY IN AQUEOUS SOLUTIONS OF NON-ELECTROLYTE IN A VICINITY OF THE SINGULAR POINT CONCENTRATION

被引：0
|
作者：
Sabirov, L. M. [1 ]
Semenov, D. I. [1 ]
Khaydarov, Kh. S. [1 ]
机构：
[1] Samarkand State Univ, Dept Phys, Samarkand 140104, Uzbekistan
来源：
UKRAINIAN JOURNAL OF PHYSICS | 2015年 / 60卷 / 09期
关键词：
sound velocity; dispersion; Rayleigh scattering; water solution; 4-methylpyridine;
D O I：
10.15407/ujpe60.09.0872
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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.
引用
收藏
页码：872 / 875
页数：4
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