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- Title
Spin-precession vortex and spin-precession supercurrent stability in <sup>3</sup>He-B.
- Authors
Sonin, E.
- Abstract
The stability of the spin-precession currents in superfluid 3He-B is analyzed for the precession angle very close to 104°. In this limit, a spin-precession vortex has a very large core, and the barrier that blocks motion of these large-core vortices across the current streamlines (phase slip) disappears at precession-phase gradients much smaller than critical gradients estimated from the Landau criterion. Nevertheless, spin-precession currents remain stable up to the Landau-critical gradients, since, in this case, there is a barrier, which blocks the phase slip at a very early stage of the vortex-core nucleation. The second-order phase transition between the parity-symmetric and parity-asymmetric spin-precession vortex cores at the precession angle of 126.5° is also predicted.
- Subjects
PRECESSION; SPHERICAL astronomy; NUCLEATION; PHYSICAL &; theoretical chemistry; VORTEX motion
- Publication
JETP Letters, 2008, Vol 88, Issue 3, p205
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S0021364008150137