Poloidal stationary magnetic field profile of our reference model (see Table 2). Panel (a) shows both the vertical and radial magnetic field component at the surface, B_z and B_r^s, respectively. Panel (b) depicts the ratio of B_r^s/B_z, which is a measure for the inclination of the field lines, whereas panel (c) shows the magnetic plasma beta β₀ at the disk midplane. The vertical dashed line correspond to the corotation radius, R_cor, and r_DZ, out, respectively. The dotted, gray lines in panels (a) and (c) describe the corresponding values at t = 0, whereas the horizontal dotted line in panel (b) denotes a surface angle of 30° with respect to the midplane normal.