Heat capacity of adsorbed helium-3 at ultra-low temperatures

被引：7

作者：

Elbs, J. ^{[1
]}

Winkelmann, C. ^{[1
]}

Bunkov, Yu. M. ^{[1
]}

Collin, E. ^{[1
]}

Godfrin, H. ^{[1
]}

机构：

[1] Ctr Rech Tres Basses Temp, F-38042 Grenoble, France

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 2007年 / 148卷 / 5-6期

关键词：

D O I：

10.1007/s10909-007-9428-4

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on direct measurements of the heat capacity of monolayers of He-3 adsorbed on the surface of a copper cell filled with superfluid He-3. We found that at ultra low temperatures the surface He-3 heat capacity dominates over the heat capacity of the bulk liquid He-3. The replacement of adsorbed He-3 by He-4 changes the heat capacity of the sample by an order of magnitude. These investigations were made in the framework of the "ULTIMA" project, a dark matter detector based on superfluid He-3 in the limit of ultra low temperatures.

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页码：749 / 753

页数：5

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