Universal Behaviour of the Superfluid Fraction and Tc of He-3 in 99.5% Open Aerogel

Details Universal Behaviour of the Superfluid Fraction and Tc of He-3 in 99.5% Open Aerogel Universal Behaviour of the Superfluid Fraction and Tc of He-3 in 99.5% Open Aerogel

1999-10-20

arxiv.org/abs/cond-mat/9910308v2

Physics

Condensed Matter

4 pages, 5 figures; 1 new figure, minor changes

Scientific paper

10.1103/PhysRevLett.84.4148

We have investigated the superfluid transition of He-3 in a 99.5% porosity silica aerogel. This very dilute sample shows behaviour intermediary between bulk He-3 and He-3 confined to the denser aerogels previously studied. We present data on both the superfluid transition temperature and the superfluid density and compare our results with previous measurements. Finally, we show that the suppression of the superfluid transition temperature and suppression of the superfluid density of He-3 in aerogel follow a universal relation for a range of aerogel samples.

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