Some comments on superfluid 3He placed in globally deformed aerogel
G. A. Baramidze, G. A. Kharadze
Andronikashvili Institute of Physics, Javakhishvili Tbilisi State University, 0186 Tbilisi, Georgia
Abstract
New experimental results focused on the behavior of the superfluid
A-like phase placed in globally deformed aerogel environment are
considered. We compare experimental data collected by using optically
attested axially stretched silica aerogel, on the one hand, and "nematically
ordered" aerogel consisting of nearly parallel
Al2O3•H2O polymer
strands, on the other. In the case of axially stretched silica aerogel the
point of view was adopted according to which the orbital anisotropy axis
is long-ranged. The experiments were carried out by pulsed
NMR techniques in keeping the direction of an externally applied magnetic
field normal to aerogel stretching axis. We have generalized the
dipole-locked configuration for arbitrary angle of inclination of the
magnetic field with respect to aerogel stretching axis. The experimental
data collected in using "nematically ordered" aerogel can't be reconciled
with above-mentioned results.