NMR IN SUPERFLUID HE-3 AT VERY-LOW TEMPERATURES

Just a few years ago if was generally believed that the NMR properties of superfluid He-3 far below T-c would not be qualitatively different from those found at higher temperatures. Surprisingly, the strange enhancement of relaxation processes at around 0.4 T-c named catastrophic relaxation, was then found. Recently an extremely long lived induction signal with neu; dynamical properties was discovered in the region of 100 mu K. Some of the newly discovered properties can be partly explained, although there are still many unsolved problems. The main aim of this article is to raise new questions for future investigations at the lowest temperatures presently possible.