NMR measurements of superfluid 3He-A in cylindrical cell under rotation

Ishikawa, Osamu; Ishiguro, R.; Fukuda, Koji; Sasaki, Yutaka; Takagi, Toshimi; Ohmi, Tetsuo; Mizusaki, T.; Marchenkov, Alexei; Davis, J.C; Packard, R. E.

doi:10.1016/s0921-4526(99)02493-x

Physica B: Condensed Matter

2000

DOI: 10.1016/s0921-4526(99)02493-x

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NMR measurements of superfluid 3He-A in cylindrical cell under rotation

Osamu Ishikawa

R. Ishiguro

Koji Fukuda

et al.

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“…2 in Ref. [13]) according to the spectrum and the way of cooling through T c . Figure 2 shows typical NMR absorption spectra for the type A at T=T c 0:75 with increasing rotation speeds.…”

mentioning

confidence: 99%

Vortex Formation and Annihilation in Three Textures of Rotating SuperfluidH3e-A

et al. 2004

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Textures, textural transformation, and formation and annihilation of a single vortex were investigated in narrow cylinders with 100 microm 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.

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“…2 in Ref. [13]) according to the spectrum and the way of cooling through T c . Figure 2 shows typical NMR absorption spectra for the type A at T=T c 0:75 with increasing rotation speeds.…”

mentioning

confidence: 99%

Vortex Formation and Annihilation in Three Textures of Rotating SuperfluidH3e-A

et al. 2004

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Vortex nucleation and texture of rotating -A in cylindrical cells with R≃10ξD

Ishiguro

Yamashita

Igarashi

et al. 2003

Physica B: Condensed Matter

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NMR measurements of superfluid 3He-A in cylindrical cell under rotation

Cited by 2 publications

References 2 publications

Vortex Formation and Annihilation in Three Textures of Rotating SuperfluidH3e-A

Vortex Formation and Annihilation in Three Textures of Rotating SuperfluidH3e-A

Vortex nucleation and texture of rotating -A in cylindrical cells with R≃10ξD

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