Stable Spin Precession at one Half of Equilibrium Magnetization in Superfluid 3He-B

Details Stable Spin Precession at one Half of Equilibrium Magnetization in Superfluid 3He-B Stable Spin Precession at one Half of Equilibrium Magnetization in Superfluid 3He-B

1996-06-30

arxiv.org/abs/cond-mat/9606221v1

Phys. Rev. Lett. 78 (1997) 86

Physics

Condensed Matter

submitted to Physical Review Letters, 4 pages, revtex, 4 Figures in ftp://boojum.hut.fi/pub/publications/lowtemp/LTL-96005.ps

Scientific paper

10.1103/PhysRevLett.78.86

New stable modes of spin precession have been observed in superfluid 3He-B. These dynamical order parameter states include precession with a magnetization S=pS_{eq} which is different from the equilibrium value S_{eq}. We have identified modes with p=1, 1/2 and \approx 0. The p=1/2 mode is the second member of phase correlated states of a spin superfluid. The new states can be excited in the temperature range 1-T/T_c \lesssim 0.02 where the energy barriers between the different local minima of the spin-orbit energy are small. They are stable in CW NMR due to low dissipation close to T_c.

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