2004年9月
Vortex formation and annihilation in three textures of rotating superfluid 3He-A
PHYSICAL REVIEW LETTERS
- 巻
- 93
- 号
- 12
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1103/PhysRevLett.93.125301
- 出版者・発行元
- AMER PHYSICAL SOC
Textures, textural transformation, and formation and annihilation of a single vortex were investigated in narrow cylinders with 100 mum radius in A-phase under rotation up to 6.28 rad/sec. Three textures were found, depending on the cooling conditions of the sample through the superfluid transition temperature T(c). We found the gyromagnetic effect of textures; that is, two textures (A or B) could be selected either by applying a magnetic field in parallel or anti-parallel to the rotation axis. The critical angular speed of a single vortex formation Omega(f) and that of annihilation Omega(a) for each texture were measured. The textural transformation in type A texture was induced by rotation. Both type A and B textures held macroscopic angular momentum along the rotation axis. We identified the texture for type A, B, and C as Mermin-Ho, radial disgyration, and a soliton type of defect along the axis, respectively.
- リンク情報
- ID情報
-
- DOI : 10.1103/PhysRevLett.93.125301
- ISSN : 0031-9007
- Web of Science ID : WOS:000223923800041