NEUTRON REFLECTIVITY OF AN OIL-WATER INTERFACE

被引：79

作者：

LEE, LT ^{[1
]}

LANGEVIN, D ^{[1
]}

FARNOUX, B ^{[1
]}

机构：

[1] ECOLE NORM SUPER, PHYS STAT LAB, F-75231 PARIS 05, FRANCE

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.67.2678

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report for the first time a study of the specular reflectivity of neutrons by an oil-water interface. We have overcome the problem of neutron absorption in the upper oil phase by using thin oil layers of well controlled thickness. The study is performed on an oil-water interface covered by a surfactant layer previously studied by light scattering and ellipsometry. The neutron study allows us to determine the thickness of the surfactant layer and the oil-water interfacial roughness, which is large due to the ultralow interfacial tension.

引用

页码：2678 / 2681

页数：4

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