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
收藏
页码：135 / 143
页数：9
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