On the structure of a moving domain wall subjected to an inplane magnetic field

For (111)-oriented uniaxial garnet films the structure of stationary moving planar domain walls subjected to an inplane magnetic field was investigated numerically and experimentally. Considering an inplane field dependent tilt of magnetization in the domains adjacent to the wall two main types of wall structure were found: 1) the structures with a parallel deflection of magnetic moments, 2) structures containing horizontal Bloch lines. The stability range of these structures as a function of an inplane magnetic field Hy and the wall velocity v is given. Experimentally found critical velocities marking the transition from a winded to an unwinded wall profile agree quite well with our data obtained numerically.