INADEQUACY OF LIFSHITZ THEORY FOR THIN LIQUID-FILMS

被引：129

作者：

BEAGLEHOLE, D ^{[1
]}

RADLINSKA, EZ ^{[1
]}

NINHAM, BW ^{[1
]}

CHRISTENSON, HK ^{[1
]}

机构：

[1] AUSTRALIAN NATL UNIV,RES SCH PHYS SCI,DEPT APPL MATH,CANBERRA,ACT 2601,AUSTRALIA

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.66.2084

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied the adsorption of cyclohexane and water on molecularly smooth mica using an angle-averaging, refractive-index-matching ellipsometric technique. The isotherms are linear for submonolayer coverages, showing the importance of entropy effects, and give finite thicknesses (almost-equal-to 2 nm) at saturation. The similarity of the two isotherms suggests that the adsorption is governed by nonspecific interactions. There is no evidence of layering but the isotherms do not agree with the Lifshitz theory of van der Waals forces.

引用

页码：2084 / 2087

页数：4

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