Dewetting dynamics of helium films on cesiated surfaces

被引：6

作者：

Reinelt, D ^{[1
]}

Engel, A ^{[1
]}

Klier, J ^{[1
]}

机构：

[1] Univ Konstanz, Fak Phys, D-78457 Constance, Germany

来源：

PHYSICA B | 2000年 / 284卷

关键词：

cesium; He-4; film; surface morphology; wetting;

D O I：

10.1016/S0921-4526(99)02207-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The nonwetting of liquid He-4 on Cs below approximate to 2 K is now well established. However, there exist discrepancies between the measured contact angles and hysteresis at the phase transition of various groups. These are attributed to the influence of the underlying Cs surface. Little is known, however, about the morphology of this surface. There is also a lack of information concerning the dewetting dynamics of metastable He-4 films and the dewetting process of He-4 drops on this weak binding surface Cs. We present results showing the influence of surface properties on the dewetting behaviour of these metastable films and discuss the scenario of dewetting of a macroscopic helium drop. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：149 / 151

页数：3

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