SUPPRESSION OF HE-3 SUPERFLUIDITY BY AEROGEL

Experiments in which 98.2% porous aerogels exert a profound influence on the properties of super-fluid He-3 are described. Superfluid transi tion temperature and superfluid density are reduced from their bulk va lues. Experiments use torsional oscillator techniques to examine the s uperfluid onset and temperature development with high precision in the mK temperature regime. Simulations are also discussed in the context of properties of He-3. (C) 1998 Elsevier Science B.V. All rights reser ved.