Oscillating nematic aerogel in superfluid 3He

Abstract

We present experiments on nematic aerogel oscillating in superfluid ${}^3$He. This aerogel consists of nearly parallel mullite strands and is attached to a vibrating wire moving along the direction of the strands. Previous nuclear magnetic resonance experiments in ${}^3$He confined in similar aerogel sample have shown that the superfluid transition of ${}^3$He in aerogel occurs into the polar phase and the transition temperature ($T_{ca}$) is only slightly suppressed with respect to the superfluid transition temperature of bulk ${}^3$He. In present experiments we observed a change in resonant properties of the vibrating wire at $T=T_{ca}$ and found that below $T_{ca}$ an additional resonance mode is excited which is coupled to the main resonance.

arXiv comment6 pages, 6 figures

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Cited by in corpus (1)

• Effect of Magnetic Scattering on Superfluid Transition of 3He in Nematic Aerogel