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

V. V. Dmitriev·I. V. Kosarev·M. Krusius·D. V. Ponarin·V. M. H. Ruutu·G. E. Volovik
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Abstract

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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V. V. Dmitriev, I. V. Kosarev, M. Krusius, D. V. Ponarin, V. M. H. Ruutu, G. E. Volovik. 1996-06-30. Stable Spin Precession at one Half of Equilibrium Magnetization in Superfluid 3He-B. https://doi.org/10.1103/physrevlett.78.86

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