SUPERFLUID TRANSITION OF HE-4 CONFINED IN POROUS GLASSES

被引：8

作者：

CHAN, MHW

机构：

[1] Department of Physics, Pennsylvania State University, University Park

来源：

PHYSICA B | 1991年 / 169卷 / 1-4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0921-4526(91)90220-9

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Recent results of superfluid density and heat capacity measurements of He-4 confined in porous Vycor and aerogel glasses of very high porosity are reviewed. These measurements support the interpretation that the superfluid transition of He-4 confined in Vycor belongs to the same universality class as that of bulk He-4. The superfluid density of He-4 in aerogel glass can be described by a simple power law to a reduced temperature of 10(-4) K; however, the resultant critical exponent and heat capacity behavior are found to be distinctly different from that of bulk.

引用

页码：135 / 143

页数：9

共 57 条

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