Characterization of fractals with an adsorbed superfluid film

被引：9

作者：

Golov, AI ^{[1
]}

Berkutov, IB ^{[1
]}

Babuin, S ^{[1
]}

Cousins, DJ ^{[1
]}

机构：

[1] Univ Manchester, Dept Phys & Astron, Manchester M13 9PL, Lancs, England

来源：

PHYSICA B-CONDENSED MATTER | 2003年 / 329卷

关键词：

superfluidity; aerogel; tortuosity; fractal;

D O I：

10.1016/S0921-4526(02)01984-1

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The tortuosity of a capillary-condensed film of superfluid He-4 adsorbed on 91%-porous silica aerogel has been measured, with transverse sound, as a function of helium coverage. Complementary data from He-4 adsorption isotherms and small-angle X-ray scattering have also been used for substrate characterization. The tortuosity is found to be roughly inversely proportional to the volume fraction of the liquid phase of helium. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：258 / 259

页数：2

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