Dynamical self-organized periodic superstructures in supersonic dynamics of domain wall in orthoferrites

Abstract It is found that the domain wall motion at supersonic velocities in orthoferrites is in line with characteristics of dynamic self-organized systems. It is also observed that the transition between two neighbouring ranges ΔHi→ΔHi+1 of a magnetic field on the graph of the domain velocity versus the magnetic field—V(H) is accompanied by a reduction in size of periodic superstructures on the domain wall, λi→λi+1. In this case, the domain wall velocity changing abruptly in the transitions between ΔHi is a bifurcation parameter.