Stable Spin Precession at One Half of Equilibrium Magnetization in Superfluid 3He-B
New modes of spin precession have been observed in superfluid 3He-B with a precessing magnetization M = pMeq, where p = 1, 12, and ~0. These dynamic order parameter states are the first examples of stable precession with a magnetization different from the equilibrium value Meq. The p = 12 mode is the second example of a phase-coherent state of a spin superfluid. The new states can be excited close to Tc in the range 1-T/Tc<~0.02 where dissipation is low and the energy barriers between the different local minima of the spin-orbit energy are small.
Physical Review Letters
- Pub Date:
- January 1997
- Condensed Matter
- submitted to Physical Review Letters, 4 pages, revtex, 4 Figures in ftp://boojum.hut.fi/pub/publications/lowtemp/LTL-96005.ps