Superfluid counterflow in rotating vortex-free sHe-B induces distinct changes in the homogeneously precessing resonance domain: its volume is reduced and the NMR absorption increased. Both effects disappear if the domain fills the whole experimental cell.
Spin-precession vortex and spin-precession supercurrent stability in3He-B
β Scribed by E. B. Sonin
- Book ID
- 110168879
- Publisher
- SP MAIK Nauka/Interperiodica
- Year
- 2008
- Tongue
- English
- Weight
- 161 KB
- Volume
- 88
- Category
- Article
- ISSN
- 0021-3640
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π SIMILAR VOLUMES
By creating a homogeneously precessing domain in sHe -B in a quadrupole RF field we have obtained a structure, which according to the theory must bear a circular spin supercurrent. This structure is analogous to a quantum vortex in 'He or a magnetic flux line in superconductors.
NMR absorption by vortices in the homogeneously precessing spin domain is discussed in terms of a torque, which arises from spin-orbit coupling between the coherently precessing spins and the nonuniformity in the orbital order parameter in the vortex core. A new soft mode of the nonaxisymmetric vort