DYNAMIC LIGHT-SCATTERING-STUDIES OF LONGITUDINAL AND SHEAR-WAVES IN A MOLECULAR LIQUID

被引：4

作者：

GOMPERTS, SN

VARIYAR, JE

GREENFIELD, M

SHEN, YC

KIVELSON, D

机构：

[1] Department of Chemistry and Biochemistry, University of California, Los Angeles

来源：

CHEMICAL PHYSICS | 1993年 / 172卷 / 01期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0301-0104(93)80110-U

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have obtained new light scattering data on triphenylphosphite in both the viscoelastic and glassy regimes. We have developed a means of studying the Brillouin lineshapes and have determined that they are Lorentzian throughout. We found that in the glass the Brillouin linewidth increases with the rate of thermal quenching. And we analyzed the linewidth and shift data, both ours and that of others, in terms of the variable keta, where k is the scattering wavevector and eta is the coefficient of shear viscosity; we discuss the weaknesses and strengths of such an analysis.

引用

页码：117 / 129

页数：13

共 18 条

[1] RELAXATION IN LIQUIDS, POLYMERS AND PLASTIC CRYSTALS - STRONG FRAGILE PATTERNS AND PROBLEMS [J].