f-state pairing in superfluid 3He-A1
Volovik G. E.
A dipole interaction in 3He-A j leads to an induced superfluidity of particles whose spin is oriented along the magnetic field. In a parallel-plane geometry these particles become paired into either a ρ state or an/state, depending on the texture of the orbital vector 1. Reversing the magnetic field causes a transition from one state to another.