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

[1] NEW FORM FOR THERMODYNAMIC POTENTIAL OF HE 2 NEAR T LAMBDA [J].

AMIT, DJ .

PHYSICS LETTERS A, 1968, A 26 (10) :466-&

[2]

AMIT DJ, TO BE PUBLISHED

[3] 3RD AND 4TH SOUND IN LIQUID HELIUM-II [J].

ATKINS, KR .

PHYSICAL REVIEW, 1959, 113 (04) :962-965

[4] GAPLESS SURFACE EXCITATIONS IN LIQUID HELIUM [J].

BREWER, DF ;

SYMONDS, AJ ;

THOMSON, AL .

PHYSICAL REVIEW LETTERS, 1965, 15 (05) :182-&

[5]

CHESTER M, PRIVATE COMMUNICATIO

[6]

ELGIN RL, 1968, B AM PHYS SOC, V13, P1669

[7]

EVENSON, PRIVATE COMMUNICATIO

[8] ON THE PROBLEM OF THE STATIC HELIUM FILM .1. GENERAL CONSIDERATIONS AND DENSITY DISTRIBUTION IN THE FILM [J].

FRANCHETTI, S .

NUOVO CIMENTO, 1956, 4 (06) :1504-1518

[9] ON THE SPECIFIC HEAT OF ADSORBED HELIUM [J].

FREDERIKSE, HPR .

PHYSICA, 1949, 15 (10) :860-862

[10]

Ginzburg V. L., 1958, Sov. Phys. JETP, V34, P1240

← 1 2 3 →