Effect of Magnetic Boundary Conditions on Superfluid 3He in Nematic Aerogel

We report results of experiments with superfluid He-3 confined in aerogels with parallel strands which lead to anisotropic scattering of He-3 quasiparticles. We vary boundary conditions for the scattering by covering the strands with different numbers of atomic He-4 layers and observe that the superfluid phase diagram and the nature of superfluid phases strongly depend on the coverage. We assume the main reason for these phenomena is a magnetic channel of the scattering which becomes important at low coverages and can be essential in other Fermi systems with triplet pairing.