NMR of superfluid 3He in anisotropic aerogel

Details NMR of superfluid 3He in anisotropic aerogel NMR of superfluid 3He in anisotropic aerogel

2006-11-30

arxiv.org/abs/cond-mat/0612007v1

Physics

Condensed Matter

Other Condensed Matter

4 pages, 4 figures, submited to Phys. Rev. Letters

Scientific paper

We report on orientation of the order parameter in the 3He-A and 3He-B phases caused by aerogel anisotropy. In 3He-A we have observed relatively homogeneous NMR line with an anomalously large negative frequency shift. We can attribute this effect to an orientation of orbital momentum along the axis of density anisotropy. The similar orientation effect we have seen in 3He-B. We can measure the A-phase Leggett frequency, which shows the same energy gap suppression as in the B-phase. We observe a correlation of A - B transition temperature and NMR frequency shift.

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