Phase diagram of superfluid 3He in "nematically ordered" aerogel
R. Sh. Askhadullin+, V. V. Dmitriev, D. A. Krasnikhin, P. N. Martynov+, A. A. Osipov+, A. A. Senin, A. N. Yudin
Kapitza Institute for Physical Problems of the RAS, 119334 Moscow, Russia
+Leypunsky Institute for Physics and Power Engineering, 249020 Obninsk, Russia
Abstract
Results of experiments with liquid 3He immersed in a new type
of aerogel are described. This aerogel consists of
Al2O3•H2O strands which are nearly parallel to each
other, so we call it as a "nematically ordered" aerogel. At all
used pressures a superfluid transition was observed and a
superfluid phase diagram was measured. Possible structures of the
observed superfluid phases are discussed.