The effect of pressure on vortex nucleation in superfluid He-4

被引：2
|
作者：
Varoquaux, E [1 ]
Avenel, O [1 ]
机构：
[1] CEA,CTR ETUD SACLAY,SERV PHYS ETAT CONDENSE,F-91191 GIF SUR YVETTE,FRANCE
来源：
CZECHOSLOVAK JOURNAL OF PHYSICS | 1996年 / 46卷
关键词：
D O I：
10.1007/BF02569436
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The pressure dependence of critical superflow through a small aperture has been studied experimentally: it is shown to yield an activation energy for vortex nucleation quite comparable to that obtained from the temperature dependence. The overall variation is however weaker than that predicted by the vortex half-ring model, revealing a strong influence of the walls.
引用
收藏
页码：41 / 42
页数：2
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