STUDIES WITH COHERENTLY PROCESSING MAGNETIZATION ON COUNTERFLOW AND VORTICES IN ROTATING HE-3-B

The homogeneously precessing domain (HPD) is a coherent dynamic order parameter state of 3He-B, which originates from the stiffness of the s pin part of the order parameter. We have investigated the HPD state in the presence of vortex-free counterflow as a function of the rotation velocity OMEGA. The energy difference between the orbital textures ac ross the domain boundary leads to a shift of the boundary, such that t he precessing domain shrinks infinity OMEGA2. In the equilibrium vorte x state no such shift is observed. By monitoring the shift vs OMEGA we have studied the B phase superfluid density anisotropy in a magnetic field, the nucleation of quantized vortex lines at the side wall of th e rotating container, and the spatial distribution of counterflow and vortices, when the number of vortices is less than in equilibrium.