Experimental determination of the n-texture of superfluid 3He-B in a cylinder

The n texture formed in a 2 mm diameter cylinder of superfluid 3He-B has been studied by continuous wave NMR near Tc. The experiments were performed at low pressures (0.82 and 2.89 bar) and using an axial magnetic field of 286 G to preserve the cylindrical symmetry of the texture. A method of deconvolution of the NMR lineshapes is presented along with the texture map obtained from the data. The texture resembled the calculated flare-out texture although differing in details including the existence of an azimuthal component to n(r). By comparison to the Ginzburg-Landau expressions expected to hold near Tc, the magnetic bending length of RCHB = 37(1 - T/Tc)1/2 cm G was found, verifying the Ginzburg-Landau prediction