SUPERFLOW IN HELIUM FILMS - THIRD-SOUND MEASUREMENTS

被引：61

作者：

KAGIWADA, RS

FRASER, JC

RUDNICK, I

BERGMAN, D

机构：

[1] Department of Physics, University of California, Los Angeles

[2] Institute for Pure and Applied Physical Sciences, University of California, San Diego

来源：

PHYSICAL REVIEW LETTERS | 1969年 / 22卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.22.338

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The results of measurements of third-sound velocity in adsorbed superfluid helium films (1.12-1.85°K) are presented. It is found that the average superfluid fraction is nonvanishing at the superflow onset thickness and has a value about 38 its bulk value. Possible reasons for a nonvanishing value are discussed. Healing lengths based on best fitting Ginzburg-Pitaevskii calculations are determined. © 1969 The American Physical Society.

引用

页码：338 / &

共 25 条

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