Superfluidity and quantized vortex studies under rotation up to 4 Hz at mK and 1 Hz at sub-mK temperatures

被引：27

作者：

Kubota, M

Obata, T

Ishiguro, R

Yamashita, M

Igarashi, T

Hayata, E

Ishikawa, O

Sasaki, Y

Mikhin, N

Fukuda, M

Kovacik, V

Mizusaki, T

机构：

[1] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan

[2] Kyoto Univ, Dept Phys, Grad Sch Sci, Sakyo Ku, Kyoto 6068502, Japan

[3] Osaka City Univ, Dept Phys, Grad Sch Sci, Sumiyoshi Ku, Osaka 5588585, Japan

[4] Inst Low Temp Phys & Engn, Kharkov, Ukraine

来源：

PHYSICA B-CONDENSED MATTER | 2003年 / 329卷

关键词：

3D superfluidity; rotating cryostat; vortex state; macroscopic phase coherence; textural state; He-3 in confined geometry;

D O I：

10.1016/S0921-4526(02)02301-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Two new high-speed rotating cryostats at the ISSP, University of Tokyo, capable of operating at mK temperatures, are currently employed for studies of superfluidity and quantized vortex states in He-4 and He-3. A stable high-Q torsional oscillator is used for the study of superfluidity in low-density He-4 films adsorbed on 3-D connected porous substrates. At T-c, the critical phenomena of 3-D Bose superfluids is seen. Under rotation a new type of vortex state is observed. High-resolution NMR studies of superfluid He-3, contained in capillary arrays of two different diameters, are made as a function of rotational speed. In these experiments, single vortex intrusion events as well as texural modification under rotation are clearly resolved. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：1577 / 1581

页数：5

共 34 条

[1] VORTEX DYNAMICS IN SUPERFLUID-HELIUM FILMS [J].