LIGHT SCATTERING FROM SURFACE WAVES ON CARBON DIOXIDE NEAR CRITICAL POINT

被引：40

作者：

BOUCHIAT, MA

MEUNIER, J

机构：

[1] Faculté des Sciences, Laboratoire de Spectroscopie Hertzienne de l'Ecole Normale Supérieure, Centre National de la Recherche Scientifique, Paris

来源：

PHYSICAL REVIEW LETTERS | 1969年 / 23卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.23.752

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The spectrum of light scattered from surface waves thermally excited on the liquid-vapor interface of carbon dioxide has been measured at several scattering angles in the temperature range 30°>~Tc-T>~3.5×10-2°K. Within experimental error no deviation of the spectrum shape from the predictions of thermodynamic fluctuation theory is observed. The temperature dependence of the surface tension is deduced from the data and fitted by the empirical law α=α0(1-TTc)μ, with μ=1.253±0.010 and α0=17.9±1.2 dyn/cm. No anomaly is noticed in the temperature variation of the shear viscosity. © 1969 The American Physical Society.

引用

页码：752 / &

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