Transverse sound in helium filled aerogel

被引：3

作者：

Babuin, S ^{[1
]}

Golov, AI ^{[1
]}

机构：

[1] Univ Manchester, Schuster Lab, Manchester M13 9PL, Lancs, England

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 2004年 / 134卷 / 1-2期

关键词：

D O I：

10.1023/B:JOLT.0000012575.98210.12

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Transverse sound in superfluid He-4 in 92% porous aerogel has been studied in a resonator with thin slab geometry, in the temperature range 0.6 to 2.8 K. The sound velocity and dissipation in the saturated aerogel were modelled using two fluid hydrodynamics, modified to account, for the presence of the aerogel. Partially filled aerogel was also studied. Adsorption and desorption isotherms displayed hysteresis. For capillary-condensed films, the tortuosity and the dissipation scale with the amount of helium.

引用

页码：333 / 338

页数：6

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