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Effect of Magnetic Boundary Conditions on Superfluid ^{3}He in Nematic Aerogel
V V Dmitriev1, A A Soldatov1,2, A N Yudin1
1P.L. Kapitza Institute for Physical Problems of RAS, 119334 Moscow, Russia.
Abstract:
We report results of experiments with superfluid ^{3}He confined in aerogels with parallel strands which lead to anisotropic scattering of ^{3}He quasiparticles. We vary boundary conditions for the scattering by covering the strands with different numbers of atomic ^{4}He 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.
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